Форум программистов [Powered by Invision Power Board]

Код

#include<windows.h>
#include<windowsx.h>
LRESULT CALLBACK WndProc(HWND,UINT,WPARAM,LPARAM);
void OnDestroy(HWND);
void OnPaint(HWND);
int WINAPI WinMain(HINSTANCE hInst, HINSTANCE, LPSTR, int)
{
        char szClassName[]="MainWindow";
        char szTitle[]="Programm";
        MSG Msg;
        WNDCLASS wc;
        ZeroMemory(&wc,sizeof(wc));
        wc.hInstance=hInst;
        wc.lpfnWndProc=WndProc;
        wc.lpszClassName=szClassName;
        wc.style=CS_VREDRAW|CS_HREDRAW;
        wc.hIcon=LoadIcon(NULL,IDI_APPLICATION);
        wc.hCursor=LoadCursor(NULL,IDC_ARROW);
        //wc.hbrBackground=GetStockBrush(LTGRAY_BRUSH);
        RegisterClass(&wc);
        HWND hwnd=CreateWindow(szClassName,szTitle,WS_OVERLAPPEDWINDOW & ~WS_MINIMIZEBOX, 40,40,800,300,HWND_DESKTOP,NULL,hInst,NULL);
        ShowWindow(hwnd, SW_SHOWNORMAL);
        while(GetMessage(&Msg,NULL,0,0))
        DispatchMessage(&Msg);
        return 0;
}
LRESULT CALLBACK WndProc(HWND hwnd, UINT msg, WPARAM wParam, LPARAM lParam)
{
        switch(msg)
        {
        HANDLE_MSG(hwnd, WM_DESTROY, OnDestroy);
        HANDLE_MSG(hwnd,WM_PAINT,OnPaint);
        default:
           return DefWindowProc(hwnd, msg,wParam,lParam);
           }
}
void OnDestroy(HWND)
{
     PostQuitMessage(0);
     }
void OnPaint(HWND hwnd)
{
     char szText[]="This is my first string in this programm!";
     PAINTSTRUCT ps;
     HDC hdc=BeginPaint(hwnd, &ps);
     TextOut(hdc,5,30,szText,strlen(szText));//есть подозрения что проблема именно здесь!
     EndPaint(hwnd,&ps); 
 }