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If you are loading an icon resource, the hInstance parameter contains the module handle of the loaded DLL. If the hInstance parameter is NULL, a system icon is loaded. The lpIconName parameter identifies the icon to load and has the following interesting description: |
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Points to a null-terminated string that contains the name of the icon resource to be loaded. Alternatively, this parameter can contain the resource identifier in the low-order word and 0 in the high-order word. Use the MAKEINTRESOURCE macro to create this value. |
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The MAKEINTRESOURCE function is defined as follows in the winuser.h header file: |
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#define MAKEINTRESOURCEA(i) (LPSTR)((DWORD)((WORD)(i)))
#define MAKEINTRESOURCEW(i) (LPWSTR)((DWORD)((WORD)(i)))
#ifdef UNICODE
#define MAKEINTRESOURCE MAKEINTRESOURCEW
#else
#define MAKEINTRESOURCE MAKEINTRESOURCEA
#endif // !UNICODE |
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If the hInstance parameter is NULL, the lpIconName parameter can be one of the following predefined constants: |
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#ifdef RC_INVOKED
#define IDI_APPLICATION 32512
#define IDI_HAND 32513
#define IDI_OUESTION 32514
#define IDI_EXCLAMATION 32515
#define IDI ASTERISK 32516
#if(WINVER >= 0x0400)
#define IDI_WINLOGO 32517
#endif /* WINVER >= 0x0400 */
#else
#define IDI_APPLICATION MAKEINTRESOURCE(32512)
#define IDI HAND MAKEINTRESOURCE(32513)
#define IDI_QUESTION MAKEINTRESOURCE(32514)
#define IDI EXCLAMATION MAKEINTRESOURCE(32515)
#define IDI_ASTERISK MAKEINTRESOURCE(32516)
#if(WINVER >= 0x0400)
#define IDI_WINLOGO MAKEINTRESOURCE(32517)
#endif /* WINVER >= x0400 */
#endif /* RC INVOKED */ |
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