Procedure pointers

[MuadDubby]

I'm trying to start a message loop for a win32 program, and one of the parameters I have to set is the callback routine to handle the messages. But I have to assign the address of this routine to a procedure pointer, and I have no clue how to do it!

So basically, how do I set wc.lpfnWndProc to the address of WindowProc()?

I am including a piece of my code here:

WNDCLASS wc;
ATOM MyAtom;

// Register the window class for the main window.

if (!hPrevInstance)
{
wc.style = CS_NOCLOSE;
wc.lpfnWndProc = ????;
wc.cbClsExtra = 0;
wc.cbWndExtra = 0;
wc.hInstance = hInstance;
wc.hIcon = LoadIcon(NULL, IDI_APPLICATION);
wc.hCursor = LoadCursor(NULL, IDC_ARROW);
wc.hbrBackground = GetStockObject(WHITE_BRUSH);
wc.lpszMenuName = "MainMenu";
wc.lpszClassName = "MainWndClass";

MyAtom=RegisterClass(&wc);
.
.
.


RESULT CALLBACK WindowProc(HWND hwnd, // handle of window
UINT uMsg, // message identifier
WPARAM wParam, // first message parameter
LPARAM lParam) // second message parameter
{
return (LRESULT)1;
}



Thanx! [sig][/sig]

 

[zBuilder]

I always thought your message loop should be in WinMain like in the code snippet below:

int WINAPI WinMain(HINSTANCE hInstance, HINSTANCE hPrevInstance, LPSTR lpCmdLine, INT nCmdShow)
{
MSG msg;
HANDLE hAccelTable;

hInst = hInstance;
if (!InitApplication())
return 0;
hAccelTable = LoadAccelerators(hInst,MAKEINTRESOURCE(IDACCEL));
if ((hwndMain = CreatetestWndClassWnd()) == (HWND)0)
return 0;
CreateSBar(hwndMain,"Ready",1);
ShowWindow(hwndMain,SW_SHOW);
while (GetMessage(&msg,NULL,0,0)) {
if (!TranslateAccelerator(msg.hwnd,hAccelTable,&msg)) {
TranslateMessage(&msg);
DispatchMessage(&msg);
}
}
return msg.wParam;
} [sig]<p> <br><a href=mailto:Kim_Christensen@telus.net>Kim_Christensen@telus.net</a><br><a href=

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[zBuilder]

Ooops wasn't paying attention here....

wc.lpfnWndProc = WindowProc;

making sure that WindowProc is an exported function. [sig]<p> <br><a href=mailto:Kim_Christensen@telus.net>Kim_Christensen@telus.net</a><br><a href=

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[MuadDubby]

Thanx, but I ended up finding the solution this morning on my own. Still - nice to see there are people who read these things

I ended up using
wc.lpfnWndProc = &WindowProc;

I was just missing this one line, but it's amazing how it brings everything to a roaring halt ...

Thanx.
[sig][/sig]