Appendix A: QBITMAP
| Rapid-Q Documentation by William Yu (c)1999 |
Appendix A: QBITMAP |
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QBITMAP Component
QBitmap is a non-visible component, used to store/retrieve BMP images.
QBitmap Properties
| Field | Type | R/W | Default | Support |
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| BMP | STRING | RW | | W |
| Use BMP to assign a new bitmap file, or to store BMP in the image cache.
Examples:
DIM Bitmap AS QBITMAP
Bitmap.BMP = "whatever.bmp"
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| BMPHandle | RESOURCE | W | | W |
| CopyMode | INTEGER | RW | cmBlackness | W |
| Empty | INTEGER | R | | W |
| Font | QFONT | W | | W |
| Handle | INTEGER | RW | | W |
| Height | INTEGER | RW | | WG |
| Monochrome | INTEGER | RW | | W |
| Pixel | 2D ARRAY of INTEGER | RW | | WG |
| PixelFormat | INTEGER | RW | pfDevice | W |
| Top | INTEGER | RW | | WG |
| Transparent | INTEGER | RW | False | W |
| TransparentColor | INTEGER | RW | | W |
| TransparentMode | INTEGER | RW | 0 | W |
| Width | INTEGER | RW | | WG |
QBitmap Methods
| Method | Type | Description | Params | Support |
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| Circle | SUB (x1%, y1%, x2%, y2%, c%, fill%) | Draw & Fill Circle | 6 | WG |
| CopyRect | SUB (D, Image, S) | D and S are QRECTs, Image can be a QImage, QCanvas, or QBitmap | 3 | W |
| Example (copies QIMAGE to bitmap at 10,10):
DIM Destination AS QRECT
DIM Source AS QRECT
DIM Image AS QIMAGE
DIM Bitmap AS QBITMAP
Image.BMP = "whatever.bmp"
WITH Destination
.Top = 10
.Left = 10
.Right = .Left+Image.Width
.Bottom = .Top+Image.Height
END WITH
WITH Source
.Top = 0
.Left = 0
.Right = Image.Width
.Bottom = Image.Height
END WITH
Bitmap.CopyRect(Destination, Image, Source)
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| Draw | SUB (x%, y%, BMP) | Draw Bitmap on Canvas | 3 | WG |
| FillRect | SUB (x1%, y1%, x2%, y2%, c%) | Draws & Fills a rectangle | 5 | WG |
| Line | SUB (x1%, y1%, x2%, y2%, c%) | Draws a line | 5 | WG |
| LoadFromFile | SUB (FileName$) | Load BMP from a file | 1 | W |
| LoadFromStream | SUB (Stream) | Load BMP from a stream | 1 | W |
| Paint | SUB (x%, y%, c%, borderc%) | Fill Region | 4 | WG |
| Pset | SUB (x%, y%, c%) | Pixel plot | 3 | WG |
| Rectangle | SUB (x1%, y1%, x2%, y2%, c%) | Draws a rectangle | 5 | WG |
| Rotate | SUB (xOrigin%, yOrigin%, Angle%) | Rotates entire bitmap at specified origin | 3 | W |
| RoundRect | SUB (x1%, y1%, x2%, y2%, x3%, y3%, c%) | Draws & Fills a rounded rectangle | 7 | W |
| SaveToFile | SUB (FileName$) | Save BMP to a file | 1 | W |
| SaveToStream | SUB (Stream) | Save BMP to a stream | 1 | W |
| StretchDraw | SUB (Rect AS QRECT, BMP) | Draw BMP and stretch to fit inside Rect | 2 | W |
| TextHeight | FUNCTION (Text$) AS WORD | Returns the height, in pixels, of Text$ string | 1 | W |
| TextWidth | FUNCTION (Text$) AS WORD | Returns the width, in pixels, of Text$ string | 1 | W |
| TextRect | SUB (Rect AS QRECT, x%, y%, S$, fc%, bc%) | Write text, and clip within region Rect | 6 | W |
| TextOut | SUB (x%, y%, S$, fc%, bc%) | Writes text to image | 5 | WG |
QBitmap Examples
DIM BitMap AS QBitMap
BitMap.BMP = "close.bmp"
CREATE Form AS QForm
CREATE Image1 AS QImage
Left = 100
Draw 5, 5, BitMap.BMP
END CREATE
Center
ShowModal
END CREATE
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