CMFCImagePaintArea Class
Provides the picture area that you use to modify an image in an image editor dialog box.
Syntax
class CMFCImagePaintArea : public CButton
Members
Public Constructors
| Name | Description |
|---|---|
| CMFCImagePaintArea::CMFCImagePaintArea | Constructs a CMFCImagePaintArea object. |
CMFCImagePaintArea::~CMFCImagePaintArea |
Destructor. |
Public Methods
| Name | Description |
|---|---|
| CMFCImagePaintArea::GetMode | Retrieves the current drawing mode. |
| CMFCImagePaintArea::SetBitmap | Sets the bitmap image for the picture area. |
| CMFCImagePaintArea::SetColor | Sets the current drawing color. |
| CMFCImagePaintArea::SetMode | Sets the current drawing mode. |
Remarks
This class is not intended to be used directly from your code.
The framework uses this class to display the picture area in an image editor dialog box. For more information about the image editor dialog box, see CMFCImageEditorDialog Class.
Example
The following example demonstrates how to construct an object of the CMFCImagePaintArea class, set the current drawing color, set the current drawing mode, and set the bitmap image for the picture area.
COLORREF mcolor(RGB(0, 255, 0));
//CBitmap bitmap;
CMFCImageEditorDialog *dialog = new CMFCImageEditorDialog(&bitmap);
CMFCImagePaintArea *wndLargeDrawArea = new CMFCImagePaintArea(dialog);
wndLargeDrawArea->SetColor(mcolor);
wndLargeDrawArea->SetMode(CMFCImagePaintArea::IMAGE_EDIT_MODE_PEN);
wndLargeDrawArea->SetBitmap(&bitmap);
Inheritance Hierarchy
Requirements
Header: afximagepaintarea.h
CMFCImagePaintArea::CMFCImagePaintArea
Constructs a CMFCImagePaintArea object.
CMFCImagePaintArea(CMFCImageEditorDialog* pParentDlg);
Parameters
pParentDlg
[in] A pointer to the dialog box that is the parent of the image editor.
CMFCImagePaintArea::GetMode
Retrieves the current drawing mode.
IMAGE_EDIT_MODE GetMode() const;
Return Value
An IMAGE_EDIT_MODE value that specifies the current drawing mode.
CMFCImagePaintArea::SetBitmap
Sets the bitmap image for the picture area.
void SetBitmap(CBitmap* pBitmap);
Parameters
pBitmap
[in] The new bitmap image to display.
Remarks
If pBitmap is NULL, this method sets the size of the modifiable paint area to zero. Otherwise, it sets the size of the modifiable paint area to the size of the provided bitmap image.
CMFCImagePaintArea::SetColor
Sets the current drawing color.
void SetColor(COLORREF color);
Parameters
color
[in] The new drawing color.
Remarks
When you select a color from the image editor palette bar or color picker, the framework calls this method to update the current drawing color. The initial drawing color is black (a COLORREF value of 0).
The drawing color is used by the image editor dialog box for all drawing modes except for IMAGE_EDIT_MODE_COLOR. For more information about drawing modes, see CMFCImagePaintArea::IMAGE_EDIT_MODE Enumeration.
CMFCImagePaintArea::SetMode
Sets the current drawing mode.
void SetMode(IMAGE_EDIT_MODE mode);
Parameters
mode
[in] An IMAGE_EDIT_MODE value that specifies the current drawing mode.