Appendix A: QBUTTON
| Rapid-Q Documentation by William Yu (c)1999-2000 |
Appendix A: QBUTTON |
|
QBUTTON Component
QButton is a general purpose button control.
QButton Properties
| Field | Type | R/W | Default | Support |
|
|
|
|
|
| Align | INTEGER | RW | alNone | W |
| Align determines how the control aligns within its parent control.
|
| BMP | STRING | RW | | W |
| Use BMP to assign a new bitmap file, or to use BMP in a draw statement.
Examples:
DIM button AS QBUTTON
button.BMP = "whatever.bmp"
Details:
You can hold multiple images on a single bitmap, but they must be
of the same size and next to each other in a horizontal row.
The "first" bitmap appears when the button is up.
The "second" bitmap appears when the button disabled.
The "third" bitmap appears when the button is down (clicked).
You have to tell Rapid-Q how many images are in your bitmap by assigning
the number to NumBMPs.
|
| BMPHandle | RESOURCE | W | | W |
| Assign a BMP resource handle to appear on the selected button.
Example:
$RESOURCE game_BMP AS "game.bmp"
DIM button AS QBUTTON
button.bmpHandle = game_BMP
|
| Cancel | INTEGER | RW | False | W |
| If Cancel is True, the button's OnClick event handler executes
when the user presses the Escape key.
|
| Caption | STRING | RW | | WXG |
| Caption specifies the text that appears on the button.
To underline a character, include an ampersand (&) symbol before the character.
|
| Color | INTEGER | RW | | X |
| Cursor | INTEGER | RW | crDefault | W |
| Default | INTEGER | RW | False | W |
| If Default is True, the button's OnClick event handler executes
when the user presses the Enter key.
|
| Enabled | INTEGER | RW | True | WXG |
| Font | QFONT | W | | W |
| Handle | INTEGER | R | | W |
| Height | INTEGER | RW | | WXG |
| Hint | STRING | RW | | WXG |
| Kind | INTEGER | RW | bkCustom | W |
| Layout | INTEGER | RW | blBMPLeft | W |
| Layout determines where the bitmap image appears on the button.
0 = blBMPLeft -- image appears at the left side of the caption
1 = blBMPRight -- image appears at the right side of the caption
2 = blBMPTop -- image appears above the caption
3 = blBMPBottom -- image appears below the caption
|
| Left | INTEGER | RW | 0 | WXG |
| ModalResult | INTEGER | RW | mrNone | W |
| NumBMPs | INTEGER | RW | | W |
| NumBMPs determines the number of images within the bitmap button.
|
| Parent | QFORM/QPANEL/QTABCONTROL | W | | WXG |
| PopupMenu | QPOPUPMENU | W | | W |
| ShowHint | INTEGER | RW | False | WXG |
| Spacing | INTEGER | RW | 4 | W |
| Determines the separation, in pixels, between the image and the caption.
|
| TabOrder | INTEGER | RW | | W |
| Tag | INTEGER | RW | | WXG |
| Top | INTEGER | RW | 0 | WXG |
| Width | INTEGER | RW | | WXG |
| Visible | INTEGER | RW | True | WXG |
QButton Methods
| Method | Type | Description | Params | Support |
|
|
|
|
|
| StartDrag | SUB | Allows Button to be dragged | 0 | W |
QButton Events
| Event | Type | Occurs when... | Params | Support |
|
|
|
|
|
| OnClick | VOID | User clicked on the button | 0 | WXG |
| OnKeyDown | SUB (Key AS Word, Shift AS INTEGER) | Key held down | 2 | W |
| OnKeyPress | SUB (Key AS BYTE) | User presses a key | 1 | W |
| OnKeyUp | SUB (Key AS Word, Shift AS INTEGER) | User releases a key | 2 | W |
| OnMouseDown | SUB (Button%, X%, Y%, Shift%) | Mouse button held down | 4 | WXG |
| OnMouseMove | SUB (X%, Y%, Shift%) | Mouse moves | 3 | WXG |
| OnMouseUp | SUB (Button%, X%, Y%, Shift%) | Mouse button is released | 4 | WXG |
QButton Examples
'-- A drag button
DIM Form AS QForm
DIM Button AS QButton
SUB MouseDown
Button.StartDrag
SHOWMESSAGE STR$(Button.Left)+", "+STR$(Button.Top)
END SUB
Button.Parent = Form
Button.OnMouseDown = MouseDown
Form.ShowModal
|
|
搜索
论坛
Home
回顶部
g.yi.org Hits:0 Last modified:2015-12-25 19:42:29
