인스턴스
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윈도우 프로시저 - 윈도클래스 윈도우 프로시저 - 윈도클래스
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윈도우1, 윈도우2 윈도우3, 윈도우4
이렇게 구성이 되어있다.
그리고 윈도우 카운터를 통해서 모든창이 꺼질때 까지
프로세스를 종료하지 않는다.
소스코드는 다음과 같다.
#include <windows.h>
LRESULT CALLBACK WndProc(HWND, UINT, WPARAM, LPARAM);
LRESULT CALLBACK WndProc2(HWND, UINT, WPARAM, LPARAM);
static int wndCount =0;
int WINAPI WinMain(HINSTANCE hInstance, HINSTANCE hPrevInstance,
LPSTR lpCmdLine, int nCmdShow)
{
WNDCLASS wndclass, wndclass2;
HWND hwnd, hwnd2, hwnd3, hwnd4;
MSG msg;
wndclass.style = CS_HREDRAW | CS_VREDRAW;
wndclass.lpfnWndProc = WndProc;
wndclass.cbClsExtra = 0;
wndclass.cbWndExtra = 0;
wndclass.hInstance = hInstance;
wndclass.hIcon = LoadIcon(NULL, IDI_APPLICATION);
wndclass.hCursor = LoadCursor(NULL, IDC_ARROW);
wndclass.hbrBackground = (HBRUSH)GetStockObject(WHITE_BRUSH);
wndclass.lpszMenuName = NULL;
wndclass.lpszClassName = "HelloClass";
wndclass2 = wndclass;
wndclass2.lpszClassName = "h2";
wndclass2.hbrBackground = (HBRUSH)GetStockObject(BLACK_BRUSH);
wndclass2.lpfnWndProc = WndProc2;
if(!RegisterClass(&wndclass)) return 1;
if(!RegisterClass(&wndclass2)) return 1;
hwnd = CreateWindow("HelloClass", "h1", WS_OVERLAPPEDWINDOW,
0, 0, 500, 500,
NULL, NULL, hInstance, NULL);
hwnd2 = CreateWindow("HelloClass", "h2", WS_OVERLAPPEDWINDOW,
500, 0, 500, 500,
NULL, NULL, hInstance, NULL);
hwnd3 = CreateWindow("h2", "h3", WS_OVERLAPPEDWINDOW,
0, 500, 500, 500,
NULL, NULL, hInstance, NULL);
hwnd4 = CreateWindow("h2", "h4", WS_OVERLAPPEDWINDOW,
500, 500, 500, 500,
NULL, NULL, hInstance, NULL);
ShowWindow(hwnd, nCmdShow);
ShowWindow(hwnd2, nCmdShow);
ShowWindow(hwnd3, nCmdShow);
ShowWindow(hwnd4, nCmdShow);
while(GetMessage(&msg, NULL, 0, 0) > 0){
TranslateMessage(&msg);
DispatchMessage(&msg);
}
return msg.wParam;
}
LRESULT CALLBACK WndProc(HWND hwnd, UINT message,
WPARAM wParam, LPARAM lParam)
{
HDC hdc;
PAINTSTRUCT ps;
char *str = "Hello, SDK";
switch(message){
case WM_CREATE:
wndCount++;
return 0;
case WM_LBUTTONDOWN:
MessageBox(hwnd, "마우스를클릭했습니다.", "마우스메시지", MB_OK);
return 0;
case WM_PAINT:
hdc = BeginPaint(hwnd, &ps);
TextOut(hdc, 100, 100, str, lstrlen(str));
EndPaint(hwnd, &ps);
return 0;
case WM_DESTROY:
wndCount--;
if(wndCount == 0){
PostQuitMessage(0);
}
return 0;
}
return DefWindowProc(hwnd, message, wParam, lParam);
}
LRESULT CALLBACK WndProc2(HWND hwnd, UINT message,
WPARAM wParam, LPARAM lParam)
{
HDC hdc;
PAINTSTRUCT ps;
char *str = "Hello, SDK";
switch(message){
case WM_CREATE:
wndCount++;
return 0;
case WM_LBUTTONDOWN:
MessageBox(hwnd, "마우스를클릭했습니다.", "마우스메시지", MB_OK);
return 0;
case WM_PAINT:
hdc = BeginPaint(hwnd, &ps);
TextOut(hdc, 100, 100, str, lstrlen(str));
EndPaint(hwnd, &ps);
return 0;
case WM_DESTROY:
wndCount--;
if(wndCount == 0){
PostQuitMessage(0);
}
return 0;
}
return DefWindowProc(hwnd, message, wParam, lParam);
}