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The structure specifies the region data attached to the windows class.
typedef struct tagREGIONDATA{HWND hBitmapWindow;LBitmapWindow * pClass;L_INT nModificationType;} REGIONDATA, * pREGIONDATA;
Handle to the bitmap window.
Pointer to an LBitmapWindow object.
The type of modification made to the region. Possible values are:
| Value | Meaning |
|---|---|
| 0 | The region was created. |
| 1 | The region was destroyed. |
| 2 | The region was modified. |
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