000
02.04.2007, 21:48 Uhr
~fasmat
Gast
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Ich hab versucht WndProc und WinMain auf Methoden einer Klasse umzuleiten, aber es funktioniert nicht ganz... hier ein Auszug aus meinem Quelltext:
cMain_window.cpp:
| C++: |
#include "cMain_window.h"
#include <windows.h>
cMain_window::cMain_window(TCHAR *ClassName)
{
m_ClassName = ClassName;
}
cMain_window::~cMain_window(void)
{
}
int cMain_window::Main(HINSTANCE hInstance, HINSTANCE hPrevInstance, LPSTR lpCmdLine, int nCmdShow)
{
MSG msg;
HWND hwnd;
WNDCLASSEX windowClass;
ZeroMemory(&windowClass, sizeof(WNDCLASSEX));
windowClass.cbSize = sizeof(WNDCLASSEX);
windowClass.style = CS_HREDRAW | CS_VREDRAW | CS_OWNDC;
windowClass.lpfnWndProc = (WNDPROC)(WindowProc);
windowClass.hInstance = hInstance;
windowClass.hbrBackground = (HBRUSH)(COLOR_APPWORKSPACE);
windowClass.hCursor = LoadCursor(NULL, IDC_ARROW);
windowClass.lpszClassName = m_ClassName;
if (RegisterClassEx(&windowClass) == 0)
{
MessageBox(NULL, TEXT("Error: Unable to execute"), m_ClassName, MB_ICONERROR);
return -1;
}
hwnd = CreateWindow(m_ClassName, TEXT("Free Talk"), WS_OVERLAPPEDWINDOW,
CW_USEDEFAULT, CW_USEDEFAULT,
700, 300,
NULL, NULL, hInstance, NULL);
ShowWindow (hwnd, nCmdShow);
UpdateWindow (hwnd);
while (GetMessage (&msg, NULL, 0, 0))
{
TranslateMessage (&msg);
DispatchMessage (&msg);
}
UnregisterClass(m_ClassName, hInstance);
return 0;
}
LRESULT cMain_window::Message(HWND hWnd, UINT uMsg, WPARAM wParam, LPARAM lParam)
{
switch (uMsg)
{
case WM_SYSCOMMAND:
switch (wParam)
{
case SC_SCREENSAVE:
case SC_MONITORPOWER:
break;
}
case WM_SIZE:
switch (wParam)
{
case SIZE_MINIMIZED:
case SIZE_MAXIMIZED:
case SIZE_RESTORED:
break;
}
case WM_CLOSE:
{
MessageBox(NULL, TEXT("Closing Window"), TEXT("Info"), MB_ICONINFORMATION);
PostQuitMessage (0);
return 0;
}
case WM_DESTROY:
{
PostQuitMessage(0);
return 0;
}
}
return DefWindowProc(hWnd, uMsg, wParam, lParam);
}
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windows.cpp:
| C++: |
#include "cMain_window.h"
int WINAPI WinMain(HINSTANCE hInstance, HINSTANCE hPrevInstance, LPSTR lpCmdLine, int nCmdShow)
{
int ret = -1;
cMain_window *appl = new cMain_window(TEXT("free talk"));
if (appl)
{
ret = appl->Main(hInstance, hPrevInstance, lpCmdLine, nCmdShow);
delete appl;
}
else
{
MessageBox(HWND_DESKTOP, TEXT("Error Creating Application Class"), TEXT("Error"), MB_OK | MB_ICONEXCLAMATION);
}
return ret;
}
LRESULT CALLBACK WindowProc(HWND hWnd, UINT uMsg, WPARAM wParam, LPARAM lParam)
{
LONG user_data = GetWindowLong(hWnd, GWL_USERDATA);
if (user_data == 0)
{
if (uMsg == WM_CREATE)
{
CREATESTRUCT *creation = reinterpret_cast<CREATESTRUCT *>(lParam);
cMain_window *appl = reinterpret_cast<cMain_window *>(creation->lpCreateParams);
SetWindowLong(hWnd, GWL_USERDATA, reinterpret_cast<LONG>(appl));
return 0;
}
}
else
{
cMain_window *appl = reinterpret_cast<cMain_window *>(user_data);
return appl->Message(hWnd, uMsg, wParam, lParam);
}
return DefWindowProc(hWnd, uMsg, wParam, lParam);
}
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cMain_window.h:
| C++: |
#pragma once
#include <windows.h>
class cMain_window
{
public:
cMain_window (TCHAR *);
virtual ~cMain_window (void);
private:
// Program Main Loop
friend int WINAPI WinMain(HINSTANCE hInstance, HINSTANCE hPrevInstance, LPSTR lpCmdLine, int nCmdShow);
int Main(HINSTANCE hInstance, HINSTANCE hPrevInstance, LPSTR lpCmdLine, int nCmdShow);
// Message Handler
friend LRESULT CALLBACK WindowProc(HWND hWnd, UINT uMsg, WPARAM wParam, LPARAM lParam);
LRESULT Message(HWND hWnd, UINT uMsg, WPARAM wParam, LPARAM lParam);
private:
TCHAR * m_ClassName;
};
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Das Problem ist folgendes: in cMain_window::Main komm ich rein, das Fenster wird angezeigt. Nur wenn ich auf schließen klicke, wird das Programm nicht beendet. Durch Debuggen hab ich festgestellt, dass cMain_window::Message nie aufgerufen wird, könnt ihr mir sagen warum?  |
