V tomto hledám chybu marně – C / C++ – Fórum – Programujte.com

Jde vážně o banalitu, ale vážně v tom nevidím žádnou chybu... mohli byste mi pomoct

HWND            hWnd;

HDC             hDC;

RECT            rect;

PAINTSTRUCT     ps;



void Write()

{

hDC = BeginPaint(hWnd, &ps);

TextOut(hDC, 50, 50, TEXT("ahoj"), 5);

EndPaint(hWnd, &ps);

}



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

{

        switch(message)

        {

         case WM_PAINT:

           Write();

           break;

          case WM_DESTROY:

          PostQuitMessage(0);

          return 0;

        }

        return DefWindowProc(hWnd, message, wParam, lParam);

}

koukam na to z hlavy (takze se mohu plest !) ale myslim si ze je to spravne mohl by jste prosim sem dat cely kod?
treba mate jen spatne neco nekde jinde....
jo a taky posledni parametr textOut je 4, ne pet

Samozřejmě pokud to pomůže

#include <windows.h>



LRESULT CALLBACK WndProc(HWND, UINT, WPARAM, LPARAM);



int WINAPI WinMain(HINSTANCE hInstance, HINSTANCE hPrevInstance,

                   PSTR szCmdLine, int iCmdShow)

{

    TCHAR szAppName[] = TEXT("Default window");           // Header

    HWND hWnd;

    MSG msg;

    WNDCLASSEX wc;

    

    wc.cbSize = sizeof(wc);

    wc.style = CS_HREDRAW | CS_VREDRAW;

    wc.lpfnWndProc = WndProc;

    wc.cbClsExtra = 0;

    wc.cbWndExtra = 0;

    wc.hInstance = hInstance;

    wc.hIcon = LoadIcon(NULL, IDI_APPLICATION);            // Ico

    wc.hIconSm = NULL;                                     // Ico_sm

    wc.hCursor = (HCURSOR)LoadCursor(NULL, IDC_ARROW);

    wc.hbrBackground = (HBRUSH)(COLOR_WINDOW+0);           // Background

    wc.lpszMenuName = NULL;

    wc.lpszClassName = szAppName;

    

    RegisterClassEx(&wc);

    

    hWnd = CreateWindowEx(0,szAppName,

                        szAppName,

                        WS_OVERLAPPEDWINDOW,

                        CW_USEDEFAULT,                    // Margin from left

                        CW_USEDEFAULT,                    // Margin from top

                        CW_USEDEFAULT,                    // Widht

                        CW_USEDEFAULT,                    // Height

                        NULL,

                        NULL,

                        hInstance,NULL);

    ShowWindow(hWnd, iCmdShow);

    UpdateWindow(hWnd);

    

    while(GetMessage(&msg, NULL, 0, 0))

    {

          TranslateMessage(&msg);

          DispatchMessage(&msg);

    }

    return msg.wParam;

}



HWND            hWnd;

HDC             hDC;

RECT            rect;

PAINTSTRUCT     ps;



void Write()

{

hDC = BeginPaint(hWnd, &ps);

TextOut(hDC, 50, 50, TEXT("ahoj"), 5);

EndPaint(hWnd, &ps);

}



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

{

        switch(message)

        {

         case WM_PAINT:

           Write();

           break;

          case WM_DESTROY:

          PostQuitMessage(0);

          return 0;

        }

        return DefWindowProc(hWnd, message, wParam, lParam);

}

#include <windows.h>



LRESULT CALLBACK WndProc(HWND, UINT, WPARAM, LPARAM);



HWND hWnd; // musi byt globalni(nebo predana paramtrem, at vi z ceho ma ziskat kontext)



int WINAPI WinMain(HINSTANCE hInstance, HINSTANCE hPrevInstance,

                   PSTR szCmdLine, int iCmdShow)

{

    TCHAR szAppName[] = TEXT("Default window");           // Header

    

    MSG msg;

    WNDCLASSEX wc;

    

    wc.cbSize = sizeof(wc);

    wc.style = CS_HREDRAW | CS_VREDRAW;

    wc.lpfnWndProc = WndProc;

    wc.cbClsExtra = 0;

    wc.cbWndExtra = 0;

    wc.hInstance = hInstance;

    wc.hIcon = LoadIcon(NULL, IDI_APPLICATION);            // Ico

    wc.hIconSm = NULL;                                     // Ico_sm

    wc.hCursor = (HCURSOR)LoadCursor(NULL, IDC_ARROW);

    wc.hbrBackground = (HBRUSH)(COLOR_WINDOW+0);           // Background

    wc.lpszMenuName = NULL;

    wc.lpszClassName = szAppName;

    

    RegisterClassEx(&wc);

    

    hWnd = CreateWindowEx(0,szAppName,

                        szAppName,

                        WS_OVERLAPPEDWINDOW,

                        CW_USEDEFAULT,                    // Margin from left

                        CW_USEDEFAULT,                    // Margin from top

                        CW_USEDEFAULT,                    // Widht

                        CW_USEDEFAULT,                    // Height

                        NULL,

                        NULL,

                        hInstance,NULL);

    ShowWindow(hWnd, iCmdShow);

    UpdateWindow(hWnd);

    

    while(GetMessage(&msg, NULL, 0, 0))

    {

          TranslateMessage(&msg);

          DispatchMessage(&msg);

    }

    return msg.wParam;

}





void Write()

{

HDC             hDC;

PAINTSTRUCT     ps;

hDC = BeginPaint(hWnd, &ps);

TextOut(hDC, 50, 50, TEXT("ahoj"), lstrlen("ahoj")); // !!!!

EndPaint(hWnd, &ps);

}



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

{

        switch(message)

        {

         case WM_PAINT:

           Write();

           break;

          case WM_DESTROY:

          PostQuitMessage(0);

          return 0;

        }

        return DefWindowProc(hWnd, message, wParam, lParam);

}