please look at this simple code!

Ok I quit programming for one month and now i started again so here i wrote my empty window program:

Code:

---


#include <windows.h>
LRESULT CALLBACK WndProc(HWND hwnd, UINT imsg, WPARAM wparam, LPARAM lparam)
{
        switch(imsg)
        {
        case WM_DESTROY:
                PostQuitMessage(0);
                return 0;
        }
                return DefWindowProc(hwnd, imsg, wparam, lparam);
}
int WINAPI WinMain(HINSTANCE hInstance, HINSTANCE hPrevInstance, LPSTR lpCmdLine, int nShowCmd)
{
        WNDCLASSEX wc;
    MSG msg;
        HWND winhwnd;
        wc.cbSize = sizeof(WNDCLASSEX);
        wc.style = CS_HREDRAW | CS_VREDRAW;
        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)GetStockObject(LTGRAY_BRUSH);
        wc.lpszMenuName = NULL;
        wc.lpszClassName = "mycalss";
        wc.hIconSm = LoadIcon(NULL, IDI_APPLICATION);

        if(!RegisterClassEx(&wc))
        {
                MessageBox(NULL, "Error in Class Registeration", "Error", MB_OK);
                return 0;
        }
        winhwnd = CreateWindow("myclass", "the title", WS_OVERLAPPEDWINDOW,
                0,0,34,34,NULL,NULL,hInstance,NULL);
        if(winhwnd == NULL)
        {
                MessageBox(NULL, "Error Creating Hwnd", "Error", MB_OK);
                return 0;
        }
        ShowWindow(winhwnd, nShowCmd);
        while(GetMessage(&msg, NULL, 0,0))
        {
                TranslateMessage(&msg);
                DispatchMessage(&msg);
        }
        return msg.wParam;
}

---

Can you please get the error in there because when i run the program, it give me the messagebox saying "Error Creating Hwnd".
Thanks!

Here:

Code:

---

wc.lpszClassName = "mycalss";

---

That is what the classname is, and here:

Code:

---

winhwnd = CreateWindow("myclass", "the title", WS_OVERLAPPEDWINDOW,
                0,0,34,34,NULL,NULL,hInstance,NULL);

---

the classnames are different. i changed them, and it worked :)

just make them the same :)

I did not get that. How come the class name "myclass" was different in the class and hwnd. I used the same name!
And here is a kind of new version of that. It gives the same error!

Code:

---

#include <windows.h>
LRESULT CALLBACK WndProc(HWND hwnd, UINT imsg, WPARAM wparam, LPARAM lparam)
{
        switch(imsg)
        {
        case WM_CLOSE:
                DestroyWindow(hwnd);
                break;
        case WM_DESTROY:
                PostQuitMessage(0);
                break;
        default:
                return DefWindowProc(hwnd, imsg, wparam, lparam);
        }
        return 0;
        }
int WINAPI WinMain(HINSTANCE hInstance, HINSTANCE hPrevInstance, LPSTR lpCmdLine, int nShowCmd)
{
        WNDCLASSEX wc;
    MSG msg;
        HWND winhwnd;

        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)GetStockObject(LTGRAY_BRUSH);
        wc.lpszMenuName = NULL;
        wc.lpszClassName = "mycalss";
        wc.hIconSm = LoadIcon(NULL, IDI_APPLICATION);

        if(!RegisterClassEx(&wc))
        {
                MessageBox(NULL, "Error in Class Registeration", "Error", MB_OK);
                return 0;
        }
        winhwnd = CreateWindowEx(
                WS_EX_CLIENTEDGE,
                "myclass",
                "the title",
                WS_OVERLAPPEDWINDOW,
                0,
                0,
                340,
                304,
                NULL,
                NULL,
                hInstance,
                NULL);
        if(winhwnd == NULL)
        {
                MessageBox(NULL, "Error in hwnd Registeration", "Error", MB_OK);
                return 0;
        }
        ShowWindow(winhwnd, nShowCmd);
        UpdateWindow(winhwnd);
        while(GetMessage(&msg, NULL, 0,0))
        {
                TranslateMessage(&msg);
                DispatchMessage(&msg);
        }
        return msg.wParam;
}

---

Please tell me the exact error!

One of them is "mycalss" and the other is "myclass". Spelling mistake :)

Oh yes i got that the class names were like that

mycalss
myclass


May I was sleeping at that time!

THanks a lot buddy:)

No prob... :) C++ is so much fun, but sometimes, small stuff like that can....(you know what i mean) LOL :)
PS: Did you take a look at my "windows" thread :) thanks :)