C/C++ Win32 Arrow Key Checker
Well thanks to a friend for helping me understand the Message Loop and the basics of Win32 C/C++ Programming, I updated the code in this thread:
http://www.consolediscussions.com/fo...xample-t29132/
Here is the code, tested to compile on these compilers:
Quote:
Code::Blocks
DevC++
Code:
#include <windows.h>
const char g_szClassName[] = "myWindowClass";
LRESULT CALLBACK WndProc (HWND hwnd, UINT msg, WPARAM wParam, LPARAM lParam)
{
switch (msg)
{
case WM_CLOSE:
DestroyWindow(hwnd);
break;
case WM_DESTROY:
PostQuitMessage(0);
break;
case WM_KEYDOWN:
switch (wParam)
{
case VK_LEFT:
MessageBox (NULL, "Left", NULL, MB_OK);
break;
case VK_RIGHT:
MessageBox (NULL, "Right", NULL, MB_OK);
break;
case VK_UP:
MessageBox (NULL, "Up", NULL, MB_OK);
break;
case VK_DOWN:
MessageBox (NULL, "Down", NULL, MB_OK);
break;
default:
MessageBox (NULL, "Unknown Key Pressed", NULL, MB_OK);
break;
}
default:
return DefWindowProc (hwnd, msg, wParam, lParam);
break;
}
}
int WINAPI WinMain(HINSTANCE hInstance, HINSTANCE hPrevInstance, LPSTR lpCmdLine, int nCmdShow)
{
WNDCLASSEX wc;
HWND hwnd;
MSG Msg;
wc.cbSize = sizeof(WNDCLASSEX);
wc.style = 0;
wc.lpfnWndProc = WndProc;
wc.cbClsExtra = 0;
wc.cbWndExtra = 0;
wc.hInstance = hInstance;
wc.hIcon = LoadIcon (NULL, IDI_APPLICATION);
wc.hCursor = LoadCursor (NULL, IDC_ARROW);
wc.hbrBackground = (HBRUSH) (COLOR_WINDOW+1);
wc.lpszMenuName = NULL;
wc.lpszClassName = g_szClassName;
wc.hIconSm = LoadIcon (NULL, IDI_APPLICATION);
if (!RegisterClassEx(&wc))
{
MessageBox (NULL, "Windows Registration Failed", "Error", MB_ICONEXCLAMATION | MB_OK);
}
hwnd = CreateWindowEx(WS_EX_CLIENTEDGE, g_szClassName, "Win32 Practice", WS_OVERLAPPEDWINDOW, CW_USEDEFAULT, CW_USEDEFAULT, 2000, 2000, NULL, NULL, hInstance, NULL);
if (hwnd == NULL)
{
MessageBox (NULL, "Windows Creation Failed", "Error", MB_ICONEXCLAMATION | MB_OK);
}
ShowWindow (hwnd, nCmdShow);
while (GetMessage (&Msg, NULL, 0, 0) > 0)
{
TranslateMessage (&Msg);
DispatchMessage (&Msg);
}
return Msg.wParam;
}
Here is the .exe:
^_^
