Qt provides cross-platform drawing libraries that will work on any of Linux, Windows or Mac. EDIT: Direct2D is another C option for Windows. Bistro cook 2 download. It's fully hardware accelerated too which is cool. As for drawing on a fullscreen window, it's no different than drawing in a regular window. Jun 19, 2018 I am facing trouble drawing a colored line in the console using dev C. I have tried searching it in Google but cant find a single code related to it. I am facing trouble drawing a colored line in the console using dev C. I have tried searching it in Google but cant find a single code related to it. Software Recommendations.
-->This topic demonstrates how to draw a line using GDI Plus.
To draw a line in Windows GDI+ you need a Graphics object, a Pen object, and a Color object. The Graphics object provides the DrawLine Methods method, and the Pen object holds attributes of the line, such as color and width. The address of the Pen object is passed as an argument to the DrawLine Methods method.
The following program, which draws a line from (0, 0) to (200, 100), consists of three functions: WinMain, WndProc, and OnPaint. The WinMain and WndProc functions provide the fundamental code common to most Windows applications. There is no GDI+ code in the WndProc function. The WinMain function has a small amount of GDI+ code, namely the required calls to GdiplusStartup and GdiplusShutdown. The GDI+ code that actually creates a Graphics object and draws a line is in the OnPaint function.
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The OnPaint function receives a handle to a device context and passes that handle to a Graphics constructor. The argument passed to the Pen constructor is a reference to a Color object. The four numbers passed to the color constructor represent the alpha, red, green, and blue components of the color. The alpha component determines the transparency of the color; 0 is fully transparent and 255 is fully opaque. The four numbers passed to the DrawLine Methods method represent the starting point (0, 0) and the ending point (200, 100) of the line.
Note the call to GdiplusStartup in the WinMain function. The first parameter of the GdiplusStartup function is the address of a ULONG_PTR. GdiplusStartup fills that variable with a token that is later passed to the GdiplusShutdown function. The second parameter of the GdiplusStartup function is the address of a GdiplusStartupInput structure. The preceding code relies on the default GdiplusStartupInput constructor to set the structure members appropriately.
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int WINAPI WinMain (HINSTANCE hThisInstance,
HINSTANCE hPrevInstance,
LPSTR lpszArgument,
int nFunsterStil)
{
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 color 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 */
'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, nFunsterStil);
/* 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;
}