|
private DrawInternal ( |
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| hdc | A handle to the destination device context. | |
| index | int | The zero-based index of the image to be drawn. |
| overlayIndex | int | The index of the overlay |
| options | ImageListDrawOptions | |
| state | ImageListDrawStates | A flag that specifies the drawing state. This member can contain one or more image list state flags. You must use comctl32.dll version 6 to use this member. See the Remarks. |
| alpha | int | Used with the alpha blending effect. |
| location | Point | The x and y coordinates that specifies where the image is drawn. |
| newSize | int | The new size of the image (Double Check) |
| Результат | void | |
private void DrawInternal(IntPtr hdc, int index, int overlayIndex, ImageListDrawOptions options, ImageListDrawStates state, int alpha, Point location, int newSize) {
var param = new IMAGELISTDRAWPARAMS() {
//himl = this.Handle;
himl = this.Handle,
hdcDst = hdc,
rgbBk = -1,
i = index,
x = location.X,
y = location.Y,
fStyle = ((int)options | (overlayIndex << 8) | (newSize == -1 ? 0 : (int)ImageListDrawOptions.Scale)),
fState = state,
Frame = alpha
};
param.cx = param.cy = newSize == -1 ? 0 : newSize;
param.cbSize = Marshal.SizeOf(param);
var hresult = this._ImageList.Draw(ref param);
Marshal.ThrowExceptionForHR(hresult);
}
