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Culfa:

--- Code: ---#include <windows.h>

/* Declare Windows procedure */
LRESULT CALLBACK WindowProcedure (HWND, UINT, WPARAM, LPARAM);

/* Make the class name into a global variable */
char szClassName[ ] = "CodeBlocksWindowsApp";

int WINAPI WinMain (HINSTANCE hThisInstance,
HINSTANCE hPrevInstance,
LPSTR lpszArgument,
int nCmdShow)
{
HWND hwnd; /* This is the handle for our window */
MSG messages; /* Here messages to the application are saved */
WNDCLASSEX wincl; /* Data structure for the windowclass */

/* The Window structure */
wincl.hInstance = hThisInstance;
wincl.lpszClassName = szClassName;
wincl.lpfnWndProc = WindowProcedure; /* This function is called by windows */
wincl.style = CS_DBLCLKS; /* Catch double-clicks */
wincl.cbSize = sizeof (WNDCLASSEX);

/* Use default icon and mouse-pointer */
wincl.hIcon = LoadIcon (NULL, IDI_APPLICATION);
wincl.hIconSm = LoadIcon (NULL, IDI_APPLICATION);
wincl.hCursor = LoadCursor (NULL, IDC_ARROW);
wincl.lpszMenuName = NULL; /* No menu */
wincl.cbClsExtra = 0; /* No extra bytes after the window class */
wincl.cbWndExtra = 0; /* structure or the window instance */
/* Use Windows's default colour as the background of the window */
wincl.hbrBackground = (HBRUSH) COLOR_BACKGROUND;

/* Register the window class, and if it fails quit the program */
if (!RegisterClassEx (&wincl))
return 0;

/* The class is registered, let's create the program*/
hwnd = CreateWindowEx (
0, /* Extended possibilites for variation */
szClassName, /* Classname */
"Code::Blocks Template Windows App", /* Title Text */
WS_OVERLAPPEDWINDOW, /* default window */
CW_USEDEFAULT, /* Windows decides the position */
CW_USEDEFAULT, /* where the window ends up on the screen */
544, /* The programs width */
375, /* and height in pixels */
HWND_DESKTOP, /* The window is a child-window to desktop */
NULL, /* No menu */
hThisInstance, /* Program Instance handler */
NULL /* No Window Creation data */
);

/* Make the window visible on the screen */
ShowWindow (hwnd, nCmdShow);

/* Run the message loop. It will run until GetMessage() returns 0 */
while (GetMessage (&messages, NULL, 0, 0))
{
/* Translate virtual-key messages into character messages */
TranslateMessage(&messages);

/* Send message to WindowProcedure */
DispatchMessage(&messages);
}

/* The program return-value is 0 - The value that PostQuitMessage() gave */
return messages.wParam;

}

/* This function is called by the Windows function DispatchMessage() */

LRESULT CALLBACK WindowProcedure (HWND hwnd, UINT message, WPARAM wParam, LPARAM lParam)
{
static POINT point;

switch (message) /* handle the messages */
{
case WM_CREATE:
point.x = -1; // noch nicht gesetzt deswegen -1
point.y = -1;

return 0;
case WM_RBUTTONDOWN: // wenn Rechte Maustaste gedrückt wurde
InvalidateRect(hwnd, NULL, TRUE); // alles neuzeichen
return 0;

case WM_LBUTTONDOWN:
{
HDC hdc = GetDC(hwnd);
{
SetPixel(hdc, LOWORD(lParam), HIWORD(lParam),RGB( rand()%256, rand()%256, rand()%256));
}
ReleaseDC(hwnd,hdc);

point.x = LOWORD(lParam);
point.y = HIWORD(lParam);
return 0;
}

case WM_LBUTTONUP:
{
if(point.x != -1)
{
HDC hdc = GetDC(hwnd);
MoveToEx(hdc, point.x, point.y, NULL);
LineTo(hdc,LOWORD(lParam),HIWORD(lParam));
ReleaseDC(hwnd, hdc);
point.x = -1;
point.y = -1;
}

return 0;
}

case WM_DESTROY:

PostQuitMessage (0); /* send a WM_QUIT to the message queue */
break;
default: /* for messages that we don't deal with */
return DefWindowProc (hwnd, message, wParam, lParam);
}

return 0;
}

--- End code ---

Errors:

--- Quote ----------------- Build: Debug in ddds ---------------

main.cpp
main.cpp(1) : error C2059: syntax error : '+'
main.cpp(30) : error C2332: 'class' : missing tag name
main.cpp(32) : error C2001: newline in constant
main.cpp(32) : error C2015: too many characters in constant
main.cpp(35) : error C2332: 'class' : missing tag name
main.cpp(39) : error C2001: newline in constant
main.cpp(39) : error C2015: too many characters in constant
main.cpp(43) : error C2653: 'Code' : is not a class or namespace name
main.cpp(83) : error C2143: syntax error : missing ';' before '.'
main.cpp(83) : error C4430: missing type specifier - int assumed. Note: C++ does not support default-int
main.cpp(88) : error C2065: 'hwnd' : undeclared identifier
main.cpp(88) : error C2065: 'NULL' : undeclared identifier
main.cpp(88) : error C2065: 'TRUE' : undeclared identifier
main.cpp(88) : error C4430: missing type specifier - int assumed. Note: C++ does not support default-int
main.cpp(88) : error C2078: too many initializers
main.cpp(88) : error C2143: syntax error : missing ';' before '+'
main.cpp(92) : error C2059: syntax error : '+'
main.cpp(105) : error C2059: syntax error : '+'
main.cpp(122) : error C4430: missing type specifier - int assumed. Note: C++ does not support default-int
main.cpp(122) : error C2143: syntax error : missing ';' before '+'
main.cpp(124) : error C2059: syntax error : '/'
main.cpp(124) : error C2001: newline in constant
main.cpp(124) : error C2015: too many characters in constant
Process terminated with status 2 (0 minutes, 6 seconds)
23 errors, 0 warnings

--- End quote ---

stahta01:
Which Compiler are you using?
Do you have the search directory setup right?
Looks like it is not finding <windows.h>

I would turn on full compiler logging.
And post the results.

Tim S

Culfa:
I use Visual Studio 2008 by MS.

This is the search directory setup.

But what do you mean with "full compiler logging"? I find it nowhere in the compiler settings.

MortenMacFly:

--- Quote from: Culfa on January 03, 2008, 04:01:48 pm ---But what do you mean with "full compiler logging"? I find it nowhere in the compiler settings.

--- End quote ---
Read my sig... ;-)

Culfa:
Lol thx^^

-------------- Build: Debug in ddds ---------------

cl.exe /nologo /W3 /Zi /D_DEBUG /I"C:\Programme\Microsoft Platform SDK for Windows Server 2003 R2\include" /I"C:\Programme\Microsoft Visual Studio 9.0\VC\include" /I"C:\Programme\Microsoft Platform SDK for Windows Server 2003 R2\Include" /I"C:\Programme\Microsoft Platform SDK for Windows Server 2003 R2\Lib" /c main.cpp /Foobj\Debug\main.obj
main.cpp
main.cpp(1) : error C2059: syntax error : '+'
main.cpp(30) : error C2332: 'class' : missing tag name
main.cpp(32) : error C2001: newline in constant
main.cpp(32) : error C2015: too many characters in constant
main.cpp(35) : error C2332: 'class' : missing tag name
main.cpp(39) : error C2001: newline in constant
main.cpp(39) : error C2015: too many characters in constant
main.cpp(43) : error C2653: 'Code' : is not a class or namespace name
main.cpp(83) : error C2143: syntax error : missing ';' before '.'
main.cpp(83) : error C4430: missing type specifier - int assumed. Note: C++ does not support default-int
main.cpp(88) : error C2065: 'hwnd' : undeclared identifier
main.cpp(88) : error C2065: 'NULL' : undeclared identifier
main.cpp(88) : error C2065: 'TRUE' : undeclared identifier
main.cpp(88) : error C4430: missing type specifier - int assumed. Note: C++ does not support default-int
main.cpp(88) : error C2078: too many initializers
main.cpp(88) : error C2143: syntax error : missing ';' before '+'
main.cpp(92) : error C2059: syntax error : '+'
main.cpp(105) : error C2059: syntax error : '+'
main.cpp(122) : error C4430: missing type specifier - int assumed. Note: C++ does not support default-int
main.cpp(122) : error C2143: syntax error : missing ';' before '+'
main.cpp(124) : error C2059: syntax error : '/'
main.cpp(124) : error C2001: newline in constant
main.cpp(124) : error C2015: too many characters in constant
Process terminated with status 2 (0 minutes, 4 seconds)
23 errors, 0 warnings

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