TIEAcquireParams.SelectSource
Declaration
function SelectSource(Apis: TIEAcquireApis = [ieaTwain, ieaWIA, ieaDCIM]; DeviceGlyphHue : Integer = -999) : boolean;Description
Prompts the user with a dialog to select a Twain, WIA or portable device.
** Generally you should NOT call this method directly. Use SelectAcquireSource or SelectAcquireSource Instead **
Use Apis to specify which sources are available to the user. Any combination of the following can be used:
| Value | Description |
|---|---|
| ieaTwain | Acquire from Twain device |
| ieaWIA | Acquire using WIA (scanners or camera) |
| ieaDCIM | Read from a connected phone, camera or device (containing a DCIM folder) using the WPD API |
Note: If your location is only [ieTwain] or [ieWIA] then the default Twain/WIA selector is shown. Otherwise a custom device selector is used (Use MsgLanguage to control the language in the custom dialog).
DeviceGlyphHue specifies the color of the graphics (Camera, Scanner, etc.) in the device selector:
| Value | Description |
|---|---|
| 0 | ImageEn blue color (#1E88E5) |
| -180 to +180 | Blue color is modified by the specified hue |
| -998 | Gray |
| -999 | Dark gray |
| -900 | No graphics/text only |
Returns False if user press "Cancel" button. An error is raised if a relevant device is not found.
Demos
 | Demos\ImageAcquisition\AllAcquire\AllAcquire.dpr |
| | Demos\Other\ImageEn_Dialogs\ImageEn_Dialogs.dpr |
Example
if ImageEnView1.IO.AcquireParams.SelectSource([ieaTwain, ieaWIA, ieaDCIM]) thenImageEnView1.IO.AcquireParams.Acquire();