Lueskelin yhtä winohjelmointikirjaa ja siinä puhuttiin dialogeista. Kirjan koodivinkit olivat kyllä aivan kamalaa purkkaa joten voisiko joku kertoa miten saisi esiin dialogin jossa olisi vain yläpalkki (ei ikonia, tekstinä vaikka: tää o dialogi, ei sulje; pienennä eikä suurenna nappeja), ei vierityspalkkeja, eikä sitä voi resizettaa. Ja sitte siinä ikkunassa olis nappi: sulje ja siinä olisi vielä joku lyhyt tekstinpätkä vaikka: tämä on turhadialogi.
Dialogi resurssitiedostossa olisi jotakuinkin tällainen:
IDD_DIALOG1 DIALOG DISCARDABLE 0, 0, 104, 55
STYLE DS_MODALFRAME | WS_POPUP | WS_CAPTION
CAPTION "huono diaalogi"
FONT 8, "MS Sans Serif"
BEGIN
DEFPUSHBUTTON "turha nappi",IDOK,6,24,88,25
CTEXT "hejsan!",IDC_STATIC,7,6,81,14,SS_CENTERIMAGE
ENDSitten ei muuta kun DialogBoxParam:lla (tai DialogBox:lla [joka on makro DialogBoxParam:sta]) dialogi näkyviin.
käväsin msdnässä kopipastettamassa mutta ei näy dialokia.
tässä koodi
#include <windows.h>
HINSTANCE hThisInstance;
HWND hwndGoto;
int iLine; // receives line number
BOOL fRelative; // receives check box status
BOOL CALLBACK GoToProc(HWND hwndDlg, UINT message, WPARAM wParam, LPARAM lParam)
{
BOOL fError;
switch (message)
{
case WM_INITDIALOG:
CheckDlgButton(hwndDlg, IDCANCEL, fRelative);
return TRUE;
case WM_COMMAND:
switch (LOWORD(wParam))
{
case IDOK:
MessageBox (NULL, "workki?" , " ", 0);
if (fError)
{
MessageBox (NULL, "virhe" , " ", 0);
}
else
// Notify the owner window to carry out the task.
return TRUE;
case IDCANCEL:
DestroyWindow(hwndDlg);
hwndGoto = NULL;
return TRUE;
}
}
return FALSE;
}
/* Declare Windows procedure */
LRESULT CALLBACK WindowProcedure(HWND, UINT, WPARAM, LPARAM);
/* Make the class name into a global variable */
char szClassName[ ] = "WindowsApp";
int WINAPI WinMain(HINSTANCE hThisInstance, HINSTANCE hPrevInstance, LPSTR lpszArgument, int nFunsterStil)
{
HWND hwnd; /* This is the handle for our window */
MSG messages; /* Here messages to the application are saved */
WNDCLASSEX wincl; /* Data structure for the windowclass */
/* The Window structure */
wincl.hInstance = hThisInstance;
wincl.lpszClassName = szClassName;
wincl.lpfnWndProc = WindowProcedure; /* This function is called by windows */
wincl.style = CS_DBLCLKS; /* Catch double-clicks */
wincl.cbSize = sizeof(WNDCLASSEX);
/* Use default icon and mouse-pointer */
wincl.hIcon = LoadIcon(NULL, IDI_APPLICATION);
wincl.hIconSm = LoadIcon(NULL, IDI_APPLICATION);
wincl.hCursor = LoadCursor(NULL, IDC_ARROW);
wincl.lpszMenuName = NULL; /* No menu */
wincl.cbClsExtra = 0; /* No extra bytes after the window class */
wincl.cbWndExtra = 0; /* structure or the window instance */
/* Use light-gray as the background of the window */
wincl.hbrBackground = (HBRUSH) GetStockObject(LTGRAY_BRUSH);
/* Register the window class, if fail quit the program */
if(!RegisterClassEx(&wincl)) return 0;
/* The class is registered, let's create the program*/
hwnd = CreateWindowEx(
0, /* Extended possibilites for variation */
szClassName, /* Classname */
"Windows App", /* Title Text */
WS_OVERLAPPEDWINDOW, /* default window */
CW_USEDEFAULT, /* Windows decides the position */
CW_USEDEFAULT, /* where the window ends up on the screen */
544, /* The programs width */
375, /* and height in pixels */
HWND_DESKTOP, /* The window is a child-window to desktop */
NULL, /* No menu */
hThisInstance, /* Program Instance handler */
NULL /* No Window Creation data */
);
/* Make the window visible on the screen */
ShowWindow(hwnd, nFunsterStil);
/* Run the message loop. It will run until GetMessage( ) returns 0 */
while(GetMessage(&messages, NULL, 0, 0))
{
/* Translate virtual-key messages into character messages */
TranslateMessage(&messages);
/* Send message to WindowProcedure */
DispatchMessage(&messages);
}
BOOL bRet;
while ( (bRet = GetMessage(&messages, NULL, 0, 0)) != 0 )
{
if (bRet == -1 )
{
// handle the error and possibly exit
}
else if (!IsWindow(hwndGoto) || !IsDialogMessage(hwndGoto, &messages))
{
TranslateMessage(&messages);
DispatchMessage(&messages);
}
}
/* The program return-value is 0 - The value that PostQuitMessage( ) gave */
return messages.wParam;
}
/* This function is called by the Windows function DispatchMessage( ) */
LRESULT CALLBACK WindowProcedure(HWND hwnd, UINT message, WPARAM wParam, LPARAM lParam)
{
switch (message) /* handle the messages */
{
case WM_COMMAND:
switch (LOWORD(wParam))
{
case 12345:
if (!IsWindow(hwndGoto))
{
hwndGoto = CreateDialog(hThisInstance,
MAKEINTRESOURCE(12345),
hwnd, (DLGPROC) GoToProc);
ShowWindow(hwndGoto, SW_SHOW);
}
break;
}
return 0L;
case WM_DESTROY:
PostQuitMessage(0); /* send a WM_QUIT to the message queue */
break;
default: /* for messages that we don't deal with */
return DefWindowProc(hwnd, message, wParam, lParam);
}
return 0;
}ja resu
#include <windows.h>
500 ICON MOVEABLE PURE LOADONCALL DISCARDABLE "C:/DEV-C++/Bin/Mainicon.ico"
12345 DIALOG DISCARDABLE 0, 0, 104, 55
STYLE DS_MODALFRAME | WS_POPUP | WS_CAPTION
CAPTION "huono diaalogi"
FONT 8, "MS Sans Serif"
BEGIN
DEFPUSHBUTTON "turha nappi",IDOK,6,24,88,25
PUSHBUTTON "nap", IDCANCEL, 7, 30, 88, 25
ENDEDIT: Korjailin kodia
Globaalille hThisInstance:lle et ainakaan ole asettanut kunnon arvoa.
öö?? Voisitko hieman selittää kun en ole mikään huippu c-koodaaja
Sulla on tuolla tokalla rivillä "HINSTANCE hThisInstance;" mutta et aseta sille missään vaiheessa arvoa. Sitten kuitenkin CreateDialog kutsussa käytät sitä. Eli pistä johonkin kohtaan WinMainia:
::hThisInstance = hThisInstance; // asetetaan globaaliin hThisInstance:en lokaalin hThisInstancen arvo
ei tuu dialogia.
kaikenlisäks se ohjelma ei sulkeudu vaan se jää tonne prosesseihin ja pitää sulkee käsin. koodi:
#include <windows.h>
HINSTANCE hThisInstance;
HWND hwndGoto;
int iLine; // receives line number
BOOL fRelative; // receives check box status
BOOL CALLBACK GoToProc(HWND hwndDlg, UINT message, WPARAM wParam, LPARAM lParam)
{
BOOL fError;
switch (message)
{
case WM_INITDIALOG:
CheckDlgButton(hwndDlg, IDCANCEL, fRelative);
return TRUE;
case WM_COMMAND:
switch (LOWORD(wParam))
{
case IDOK:
MessageBox (NULL, "workki?" , " ", 0);
if (fError)
{
MessageBox (NULL, "virhe" , " ", 0);
}
else
// Notify the owner window to carry out the task.
return TRUE;
case IDCANCEL:
DestroyWindow(hwndDlg);
hwndGoto = NULL;
return TRUE;
}
}
return FALSE;
}
/* Declare Windows procedure */
LRESULT CALLBACK WindowProcedure(HWND, UINT, WPARAM, LPARAM);
/* Make the class name into a global variable */
char szClassName[ ] = "WindowsApp";
int WINAPI WinMain(HINSTANCE hThisInstance, HINSTANCE hPrevInstance, LPSTR lpszArgument, int nFunsterStil)
{
::hThisInstance = hThisInstance;
HWND hwnd; /* This is the handle for our window */
MSG messages; /* Here messages to the application are saved */
WNDCLASSEX wincl; /* Data structure for the windowclass */
/* The Window structure */
wincl.hInstance = hThisInstance;
wincl.lpszClassName = szClassName;
wincl.lpfnWndProc = WindowProcedure; /* This function is called by windows */
wincl.style = CS_DBLCLKS; /* Catch double-clicks */
wincl.cbSize = sizeof(WNDCLASSEX);
/* Use default icon and mouse-pointer */
wincl.hIcon = LoadIcon(NULL, IDI_APPLICATION);
wincl.hIconSm = LoadIcon(NULL, IDI_APPLICATION);
wincl.hCursor = LoadCursor(NULL, IDC_ARROW);
wincl.lpszMenuName = NULL; /* No menu */
wincl.cbClsExtra = 0; /* No extra bytes after the window class */
wincl.cbWndExtra = 0; /* structure or the window instance */
/* Use light-gray as the background of the window */
wincl.hbrBackground = (HBRUSH) GetStockObject(LTGRAY_BRUSH);
/* Register the window class, if fail quit the program */
if(!RegisterClassEx(&wincl)) return 0;
/* The class is registered, let's create the program*/
hwnd = CreateWindowEx(
0, /* Extended possibilites for variation */
szClassName, /* Classname */
"Windows App", /* Title Text */
WS_OVERLAPPEDWINDOW, /* default window */
CW_USEDEFAULT, /* Windows decides the position */
CW_USEDEFAULT, /* where the window ends up on the screen */
544, /* The programs width */
375, /* and height in pixels */
HWND_DESKTOP, /* The window is a child-window to desktop */
NULL, /* No menu */
hThisInstance, /* Program Instance handler */
NULL /* No Window Creation data */
);
/* Make the window visible on the screen */
ShowWindow(hwnd, nFunsterStil);
/* Run the message loop. It will run until GetMessage( ) returns 0 */
while(GetMessage(&messages, NULL, 0, 0))
{
/* Translate virtual-key messages into character messages */
TranslateMessage(&messages);
/* Send message to WindowProcedure */
DispatchMessage(&messages);
}
BOOL bRet;
while ( (bRet = GetMessage(&messages, NULL, 0, 0)) != 0 )
{
if (bRet == -1 )
{
// handle the error and possibly exit
}
else if (!IsWindow(hwndGoto) || !IsDialogMessage(hwndGoto, &messages))
{
TranslateMessage(&messages);
DispatchMessage(&messages);
}
}
/* The program return-value is 0 - The value that PostQuitMessage( ) gave */
return messages.wParam;
}
/* This function is called by the Windows function DispatchMessage( ) */
LRESULT CALLBACK WindowProcedure(HWND hwnd, UINT message, WPARAM wParam, LPARAM lParam)
{
switch (message) /* handle the messages */
{
case WM_COMMAND:
switch (LOWORD(wParam))
{
case 12345:
if (!IsWindow(hwndGoto))
{
hwndGoto = CreateDialog(hThisInstance,
MAKEINTRESOURCE(12345),
hwnd, (DLGPROC) GoToProc);
ShowWindow(hwndGoto, SW_SHOW);
}
break;
}
return 0L;
case WM_DESTROY:
PostQuitMessage(0); /* send a WM_QUIT to the message queue */
break;
default: /* for messages that we don't deal with */
return DefWindowProc(hwnd, message, wParam, lParam);
}
return 0;
}Tuo pätkä on kyllä melkoisen täynään virheitä. Ensinnäkin, mikä on WM_COMMAND:n tarkoitus WindowProcedure-funktiossa? Nykyiselläänhän tuohon koodinpätkään ei koskaan päästä -> dialogia ei tietenkään näy.
Mikä muuten on tuon fErrorin tarkoitus? Koko koodi näyttää pahasti rip'n'rollatulta. Sellaista mitä ei tajua, ei kannata kopioida.
Tässä nyt kuitenkin edes jotensakin toimiva koodi:
#include <windows.h>
HINSTANCE hThisInstance;
HWND hwndGoto;
int iLine; // receives line number
BOOL fRelative; // receives check box status
BOOL CALLBACK GoToProc(HWND hwndDlg, UINT message, WPARAM wParam, LPARAM lParam)
{
BOOL fError;
switch (message)
{
case WM_INITDIALOG:
CheckDlgButton(hwndDlg, IDCANCEL, fRelative);
return TRUE;
case WM_COMMAND:
switch (LOWORD(wParam))
{
case IDOK:
MessageBox (NULL, "workki?" , " ", 0);
if (fError)
{
MessageBox (NULL, "virhe" , " ", 0);
}
else
// Notify the owner window to carry out the task.
return TRUE;
return TRUE;
case IDCANCEL:
DestroyWindow(hwndDlg);
hwndGoto = NULL;
return TRUE;
}
}
return FALSE;
}
/* Declare Windows procedure */
LRESULT CALLBACK WindowProcedure(HWND, UINT, WPARAM, LPARAM);
/* Make the class name into a global variable */
char szClassName[ ] = "WindowsApp";
int WINAPI WinMain(HINSTANCE hThisInstance, HINSTANCE hPrevInstance, LPSTR lpszArgument, int nFunsterStil)
{
::hThisInstance = hThisInstance;
HWND hwnd; /* This is the handle for our window */
MSG messages; /* Here messages to the application are saved */
WNDCLASSEX wincl; /* Data structure for the windowclass */
/* The Window structure */
wincl.hInstance = hThisInstance;
wincl.lpszClassName = szClassName;
wincl.lpfnWndProc = WindowProcedure; /* This function is called by windows */
wincl.style = CS_DBLCLKS; /* Catch double-clicks */
wincl.cbSize = sizeof(WNDCLASSEX);
/* Use default icon and mouse-pointer */
wincl.hIcon = LoadIcon(NULL, IDI_APPLICATION);
wincl.hIconSm = LoadIcon(NULL, IDI_APPLICATION);
wincl.hCursor = LoadCursor(NULL, IDC_ARROW);
wincl.lpszMenuName = NULL; /* No menu */
wincl.cbClsExtra = 0; /* No extra bytes after the window class */
wincl.cbWndExtra = 0; /* structure or the window instance */
/* Use light-gray as the background of the window */
wincl.hbrBackground = (HBRUSH) GetStockObject(LTGRAY_BRUSH);
/* Register the window class, if fail quit the program */
if(!RegisterClassEx(&wincl)) return 0;
/* The class is registered, let's create the program*/
hwnd = CreateWindowEx(
0, /* Extended possibilites for variation */
szClassName, /* Classname */
"Windows App", /* Title Text */
WS_OVERLAPPEDWINDOW, /* default window */
CW_USEDEFAULT, /* Windows decides the position */
CW_USEDEFAULT, /* where the window ends up on the screen */
544, /* The programs width */
375, /* and height in pixels */
HWND_DESKTOP, /* The window is a child-window to desktop */
NULL, /* No menu */
hThisInstance, /* Program Instance handler */
NULL /* No Window Creation data */
);
/* Make the window visible on the screen */
ShowWindow(hwnd, nFunsterStil);
/* Run the message loop. It will run until GetMessage( ) returns 0 */
while(GetMessage(&messages, NULL, 0, 0))
{
/* Translate virtual-key messages into character messages */
TranslateMessage(&messages);
/* Send message to WindowProcedure */
DispatchMessage(&messages);
}
BOOL bRet;
/* The program return-value is 0 - The value that PostQuitMessage( ) gave */
return messages.wParam;
}
/* This function is called by the Windows function DispatchMessage( ) */
LRESULT CALLBACK WindowProcedure(HWND hwnd, UINT message, WPARAM wParam, LPARAM lParam)
{
switch (message) /* handle the messages */
{
case WM_CREATE:
// switch (LOWORD(wParam))
{
// case 12345:
if (!IsWindow(hwndGoto))
{
hwndGoto = CreateDialog(hThisInstance,
MAKEINTRESOURCE(12345),
hwnd, (DLGPROC) GoToProc);
ShowWindow(hwndGoto, SW_SHOW);
}
break;
}
return 0L;
case WM_DESTROY:
PostQuitMessage(0); /* send a WM_QUIT to the message queue */
break;
default: /* for messages that we don't deal with */
return DefWindowProc(hwnd, message, wParam, lParam);
}
return 0;
}Joo nyt alko toimiin. Kiitti. Joo mä vaan kopipastetin msdnnästä.
Aihe on jo aika vanha, joten et voi enää vastata siihen.