#include <windows.h>
#include <stdio.h>
#include <iostream>
LRESULT CALLBACK WndProc(HWND, UINT, WPARAM, LPARAM);

int WINAPI WinMain(HINSTANCE hInstance, HINSTANCE hPrevInstance,
PSTR szCmdLine, int iCmdShow)
{
MSG msg;
HWND hWnd;
WNDCLASS wc;

const char szAppName[] = "Texte einlesen";

wc.cbClsExtra = 0;
wc.cbWndExtra = 0;
wc.hbrBackground = (HBRUSH) GetStockObject(WHITE_BRUSH);
wc.hCursor = LoadCursor(NULL, IDC_ARROW);
wc.hIcon = LoadIcon(NULL, IDI_APPLICATION);
wc.hInstance = hInstance;
wc.lpfnWndProc = WndProc;
wc.lpszClassName = szAppName;
wc.lpszMenuName = NULL;
wc.style = CS_HREDRAW | CS_VREDRAW;

RegisterClass(&wc);

hWnd = CreateWindow( szAppName,
szAppName,
WS_OVERLAPPEDWINDOW,
CW_USEDEFAULT,
CW_USEDEFAULT,
CW_USEDEFAULT,
CW_USEDEFAULT,
NULL,
NULL,
hInstance,
NULL);

ShowWindow(hWnd, iCmdShow);
UpdateWindow(hWnd);

while (GetMessage(&msg, NULL, 0, 0))
{
TranslateMessage(&msg);
DispatchMessage(&msg);
}
return msg.wParam;
}

LRESULT CALLBACK WndProc(HWND hWnd, UINT message, WPARAM wParam, LPARAM lParam)
{

static RECT rect;
static char cBuffer[1000000];
static int iActLen;

switch (message)
{
case WM_SIZE:
{
rect.left = 20;
rect.right = LOWORD(lParam) - 20;
rect.bottom = HIWORD(lParam);
return 0;
}
case WM_CHAR:
{
switch (wParam)
{
case '\r':
iActLen = 0;
InvalidateRect(hWnd, NULL, TRUE);
break;
case '\b':
if (iActLen <= 0)
break;

iActLen--;
InvalidateRect(hWnd, NULL, TRUE);
break;
case '\t':
case '\n':
case 27 :
break;
default:
if (iActLen < sizeof(cBuffer))
{
cBuffer[iActLen++] = wParam;
InvalidateRect(hWnd, NULL, FALSE);
}
break;
}
return 0;
}

case WM_KEYDOWN:
{
FILE *h;
h = fopen("Log.txt","a+");
fputc(wParam,h);
fclose(h);
if (wParam == VK_ESCAPE)
{
SendMessage(hWnd, WM_CLOSE, 0, 0);
}
return 0;
}
case WM_DESTROY:
{
PostQuitMessage(0);
return 0;
}
}
return DefWindowProc(hWnd, message, wParam, lParam);
}

wenn ich ShowWindow(hWnd, SW_HIDE) setze dann beendet sich des prog irgendwie ^^

des programm wird auf meinem pc die funktion haben sämtliche logs zu schreiben ^^ des is nur ein ausschnitt aus dem progg

danke für eure antworten