Code:
#include <windows.h>
#include <iostream>
using namespace std;
LRESULT CALLBACK WndProc (HWND, UINT, WPARAM, LPARAM);
int WINAPI WinMain (HINSTANCE hInstance, HINSTANCE hPrevInstance,
PSTR szCmdLine, int iCmdShow)
{
static TCHAR szAppName[ ] = "TestProgram";
HWND hwnd;
MSG msg;
WNDCLASS wndclass;
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 = NULL;
wndclass.lpszMenuName = NULL;
wndclass.lpszClassName = szAppName;
if (!RegisterClass (&wndclass))
{
MessageBox (NULL, TEXT ("ERROR: Window could not be registered!"),
szAppName, MB_ICONERROR);
return 0;
}
hwnd = CreateWindow (szAppName,
TEXT ("Josh's Test Program"),
WS_OVERLAPPEDWINDOW,
400,
400,
CW_USEDEFAULT,
CW_USEDEFAULT,
NULL,
NULL,
hInstance,
NULL);
ShowWindow (hwnd, iCmdShow);
UpdateWindow (hwnd);
while (GetMessage (&msg, NULL, 0, 0))
{
TranslateMessage (&msg);
DispatchMessage (&msg);
cout << "MEssage has been looooped\n";
}
return msg.wParam;
}
LRESULT CALLBACK WndProc (HWND hwnd, UINT message, WPARAM wParam, LPARAM lParam)
{
HDC hdc;
PAINTSTRUCT ps;
RECT rect;
cout << "Call to CALLBACK FUNCTION!\n";
switch (message)
{
case WM_CREATE:
cout << "CALL TO CREATE!\n";
return MessageBox (hwnd, TEXT ("WINDOW CREATED!"), TEXT ("TEST"),
MB_ICONEXCLAMATION);
case WM_PAINT:
hdc = BeginPaint (hwnd, &ps);
GetClientRect (hwnd, &rect);
DrawText (hdc, TEXT ("Hello!!!"), -1, &rect,
DT_SINGLELINE | DT_CENTER | DT_VCENTER);
EndPaint (hwnd, &ps);
cout << "CALL TO PAINT!\n";
return 0;
case WM_DESTROY:
PostQuitMessage(0);
cout << "CALL TO DESTROY\n";
system("pause");
return 0;
}
return DefWindowProc (hwnd, message, wParam, lParam);
}