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BennettSteele

Win32 C++ Setting the window icon

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So i looked at my CreateWindow() function, and saw this line:


wc.hIcon = LoadIcon(NULL,IDI_APPLICATION);


and started researching... because before i was using just opengl and glut... but now im using the Win32 API, so i need a way to use my resource file:


MyIcon ICON "nicon.ico"


with the LoadIcon() function. What do i need to do?

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MyIcon should just be a #define'd number. Do you have a resource.h file?

Here's a guide on how to load an icon from a resource file.

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nothing is working... DX

here are the files:

Icon.rc:

#include "source/Resources.h"
MyIcon ICON "icon.ico"


Resources.h:

#ifndef RESOURCES_H_INCLUDED
#define RESOURCES_H_INCLUDED
#define MyIcon 100001
#endif // RESOURCES_H_INCLUDED


CreateWindow():

#include "Functions.h"
#include <windows.h>
#include "App.h"
extern myApp APP;
#include "Resources.h"
void Create_Window()
{
GLuint PixelFormat; // Holds The Results After Searching For A Match
WNDCLASS wc; // Windows Class Structure
DWORD dwExStyle; // Window Extended Style
DWORD dwStyle; // Window Style
RECT WindowRect; // Grabs Rectangle Upper Left / Lower Right Values
WindowRect.left=(long)0; // Set Left Value To 0
WindowRect.right=(long)APP.Screenw; // Set Right Value To Requested Width
WindowRect.top=(long)0; // Set Top Value To 0
WindowRect.bottom=(long)APP.Screenh; // Set Bottom Value To Requested Height
wc.style = CS_HREDRAW | CS_VREDRAW | CS_OWNDC; // Redraw On Size, And Own DC For Window.
wc.lpfnWndProc = (WNDPROC) MainWindowProc; // WndProc Handles Messages
wc.cbClsExtra = 0; // No Extra Window Data
wc.cbWndExtra = 0; // No Extra Window Data
wc.hInstance = APP.hInstance; // Set The Instance
wc.hIcon = LoadIcon(GetModuleHandle(NULL),MAKEINTRESOURCE(MyIcon)); // Load The Default Icon
// wc.hIconSm = LoadIcon(APP.hInstance,MAKEINTRESOURCE(MyIcon));
wc.hCursor = LoadCursor(NULL, IDC_ARROW); // Load The Arrow Pointer
wc.hbrBackground = NULL; // No Background Required For GL
wc.lpszMenuName = NULL; // We Don't Want A Menu
wc.lpszClassName = "Survivor"; // Set The Class Name
if (!RegisterClass(&wc)) // Attempt To Register The Window Class
{
MessageBox(NULL,"Failed To Register The Window Class.","ERROR",MB_OK|MB_ICONEXCLAMATION);
Kill_App(EXIT_FAILURE);
}
dwExStyle=WS_EX_APPWINDOW | WS_EX_WINDOWEDGE; // Window Extended Style
dwStyle=WS_OVERLAPPEDWINDOW | WS_THICKFRAME; // Windows Style
AdjustWindowRectEx(&WindowRect, dwStyle, FALSE, dwExStyle); // Adjust Window To True Requested Size
// Create The Window
if (!(APP.hWnd=CreateWindowEx(dwExStyle, // Extended Style For The Window
"Survivor", // Class Name
"Survivor", // Window Title
dwStyle | // Defined Window Style
WS_CLIPSIBLINGS | // Required Window Style
WS_CLIPCHILDREN, // Required Window Style
CW_USEDEFAULT, 0, // Window Position
WindowRect.right-WindowRect.left, // Calculate Window Width
WindowRect.bottom-WindowRect.top, // Calculate Window Height
NULL, // No Parent Window
NULL, // No Menu
APP.hInstance, // Instance
NULL))) // Dont Pass Anything To WM_CREATE
{
MessageBox(NULL,"Window Creation Error.","ERROR",MB_OK|MB_ICONEXCLAMATION);
Kill_App(EXIT_FAILURE);
}
PIXELFORMATDESCRIPTOR pfd= // pfd Tells Windows How We Want Things To Be
{
sizeof(PIXELFORMATDESCRIPTOR), // Size Of This Pixel Format Descriptor
1, // Version Number
PFD_DRAW_TO_WINDOW | // Format Must Support Window
PFD_SUPPORT_OPENGL | // Format Must Support OpenGL
PFD_DOUBLEBUFFER, // Must Support Double Buffering
PFD_TYPE_RGBA, // Request An RGBA Format
32, // Select Our Color Depth
0, 0, 0, 0, 0, 0, // Color Bits Ignored
0, // No Alpha Buffer
0, // Shift Bit Ignored
0, // No Accumulation Buffer
0, 0, 0, 0, // Accumulation Bits Ignored
16, // 16Bit Z-Buffer (Depth Buffer)
0, // No Stencil Buffer
0, // No Auxiliary Buffer
PFD_MAIN_PLANE, // Main Drawing Layer
0, // Reserved
0, 0, 0 // Layer Masks Ignored
};
if (!(APP.hDC=GetDC(APP.hWnd)))// Did We Get A Device Context?
{
MessageBox(NULL,"Can't Create A GL Device Context.","ERROR",MB_OK|MB_ICONEXCLAMATION);
Kill_App(EXIT_FAILURE);
}
if (!(PixelFormat=ChoosePixelFormat(APP.hDC,&pfd)))// Did Windows Find A Matching Pixel Format?
{
MessageBox(NULL,"Can't Find A Suitable PixelFormat.","ERROR",MB_OK|MB_ICONEXCLAMATION);
Kill_App(EXIT_FAILURE);
}
if(!SetPixelFormat(APP.hDC,PixelFormat,&pfd))// Are We Able To Set The Pixel Format?
{
MessageBox(NULL,"Can't Set The PixelFormat.","ERROR",MB_OK|MB_ICONEXCLAMATION);
Kill_App(EXIT_FAILURE);
}
if (!(APP.hRC=wglCreateContext(APP.hDC)))// Are We Able To Get A Rendering Context?
{
MessageBox(NULL,"Can't Create A GL Rendering Context.","ERROR",MB_OK|MB_ICONEXCLAMATION);
Kill_App(EXIT_FAILURE);
}
if(!wglMakeCurrent(APP.hDC,APP.hRC))// Try To Activate The Rendering Context
{
MessageBox(NULL,"Can't Activate The GL Rendering Context.","ERROR",MB_OK|MB_ICONEXCLAMATION);
Kill_App(EXIT_FAILURE);
}
// APP.hWnd.hIcon=LoadIcon(APP.hInstance,"icon.ico");
// APP.hWnd.hIconsm=LoadIcon(APP.hInstance,"icon.ico");
ShowWindow(APP.hWnd,SW_SHOWMAXIMIZED); // Show The Window
SetForegroundWindow(APP.hWnd); // Slightly Higher Priority
SetFocus(APP.hWnd); // Sets Keyboard Focus To The Window
reshape(APP.Screenw,APP.Screenh);
}

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