C
Habs nun doch noch hinbekommen!
#include <windows.h>
LRESULT CALLBACK WindowProcedure (HWND, UINT, WPARAM, LPARAM);
char szClassName[] = "WindowsApp";
int WINAPI WinMain (HINSTANCE hThisInstance, HINSTANCE hPrevInstance,
LPSTR lpszArgument, int nFunsterStil)
{
HWND hwnd;
MSG messages;
WNDCLASSEX wincl;
wincl.hInstance = hThisInstance;
wincl.lpszClassName = szClassName;
wincl.lpfnWndProc = WindowProcedure;
wincl.style = CS_DBLCLKS;
wincl.cbSize = sizeof (WNDCLASSEX);
wincl.hIcon = LoadIcon (NULL, IDI_APPLICATION);
wincl.hIconSm = LoadIcon (NULL, IDI_APPLICATION);
wincl.hCursor = LoadCursor (NULL, IDC_ARROW);
wincl.lpszMenuName = NULL;
wincl.cbClsExtra = 0;
wincl.cbWndExtra = 0;
wincl.hbrBackground = (HBRUSH) GetStockObject(BLACK_BRUSH);
if (!RegisterClassEx (&wincl))
return 0;
hwnd = CreateWindowEx(
0,
szClassName,
"Lines",
WS_OVERLAPPEDWINDOW,
CW_USEDEFAULT,
CW_USEDEFAULT,
320,
220,
HWND_DESKTOP,
NULL,
hThisInstance,
NULL
);
ShowWindow (hwnd, nFunsterStil);
while (GetMessage (&messages, NULL, 0, 0))
{
TranslateMessage(&messages);
DispatchMessage(&messages);
}
return messages.wParam;
}
LRESULT CALLBACK WindowProcedure (HWND hwnd, UINT message,
WPARAM wParam, LPARAM lParam)
{
static int i=0;
switch (message)
{
case WM_KEYDOWN:
{
switch (wParam)
{
case VK_NUMPAD0:
i=0;
break;
case VK_NUMPAD1:
i=1;
break;
case VK_NUMPAD2:
i=2;
break;
case VK_NUMPAD3:
i=3;
break;
}
InvalidateRect(hwnd, NULL, TRUE);
return 0;
}
case WM_PAINT:
{
PAINTSTRUCT ps;
HDC hdc;
HPEN hpen;
char rl[] = " Rote Linie";
char gl[] = "Grüne Linie";
char bl[] = "Blaue Linie";
hdc = BeginPaint(hwnd, &ps);
SetBkMode(hdc, TRANSPARENT);
if(i == 1){ // Taste 1 = Rot
SetTextColor(hdc, RGB(255,0,0));
TextOut(hdc, 110, 20, rl, sizeof(rl)-1);
hpen = CreatePen(PS_SOLID, 0, RGB(255,0,0));
SelectObject(hdc, hpen);
MoveToEx(hdc, 10, 40, NULL);
LineTo(hdc, 300, 40);
DeleteObject(hpen);
}
else if(i == 2){ // Taste 2 = Grün
SetTextColor(hdc, RGB(0,255,0));
TextOut(hdc, 110, 70, gl, sizeof(bl)-1);
hpen = CreatePen(PS_SOLID, 0, RGB(0,255,0));
SelectObject(hdc, hpen);
MoveToEx(hdc, 10, 90, NULL);
LineTo(hdc, 300, 90);
DeleteObject(hpen);
}
else if(i == 3){ // Taste 3 = Blau
SetTextColor(hdc, RGB(0,0,255));
TextOut(hdc, 110, 120, bl, sizeof(rl)-1);
hpen = CreatePen(PS_SOLID, 0, RGB(0,0,255));
SelectObject(hdc, hpen);
MoveToEx(hdc, 10, 140, NULL);
LineTo(hdc, 300, 140);
DeleteObject(hpen);
}
else if(i == 0){ // Taste 0 = Alle Farben
SetTextColor(hdc, RGB(255,0,0)); // Default = "
TextOut(hdc, 110, 20, rl, sizeof(rl)-1);
hpen = CreatePen(PS_SOLID, 0, RGB(255,0,0));
SelectObject(hdc, hpen);
MoveToEx(hdc, 10, 40, NULL);
LineTo(hdc, 300, 40);
DeleteObject(hpen);
SetTextColor(hdc, RGB(0,255,0));
TextOut(hdc, 110, 70, gl, sizeof(gl)-1);
hpen = CreatePen(PS_SOLID, 0, RGB(0,255,0));
SelectObject(hdc, hpen);
MoveToEx(hdc, 10, 90, NULL);
LineTo(hdc, 300, 90);
DeleteObject(hpen);
SetTextColor(hdc, RGB(0,0,255));
TextOut(hdc, 110, 120, bl, sizeof(bl)-1);
hpen = CreatePen(PS_SOLID, 0, RGB(0,0,255));
SelectObject(hdc, hpen);
MoveToEx(hdc, 10, 140, NULL);
LineTo(hdc, 300, 140);
DeleteObject(hpen);
}
EndPaint(hwnd, &ps);
return 0;
}
case WM_DESTROY:
PostQuitMessage (0);
return 0;
default:
return DefWindowProc (hwnd, message, wParam, lParam);
}
return 0;
}
Danke euch allen für eure Hilfe!
Grüße
