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Project: Message Dialogue Components.
Unit: PJMessageDialog.
Applies to: ~>3.0
TPJWinMsgDlg provides a customisable Windows message dialogue box. The component wraps the Windows MessageBoxIndirect API call.
Its properties are a subset of those of TPJVCLMsgDlg. TPJWinMsgDlg is recommended for new projects requiring a Windows message box. If even greater control over the appearance of the dialogue is required then use TPJVCLMsgDlg.
The text displayed in the dialogue box is determined by the Text property. Various button groupings can be displayed using the ButtonGroup property. Setting a non-zero HelpContext causes a help button to be displayed. The Kind property allows a choice of various standard windows icons to be displayed. A user defined icon extracted from a named resource, specified by IconResource can also be displayed. The window title can be set using the Title property, otherwise a default title, related to the kind of icon being displayed is used. The MakeSound property determines whether an appropriate system sound is generated when the dialogue is displayed.
| Method | Description |
|---|---|
| Execute | Displays the dialogue box and returns information about the button pressed to close it. |
| Property | Description |
|---|---|
| ButtonGroup | Determines which buttons appear in the dialogue box. |
| DlgType | Permits the buttons and type of dialogue box displayed to be specified by means of the flags that are passed to the uType parameter of the Windows MessageBox API function. |
| HelpContext | Specifies the context number for online help and displays a help button. |
| HelpFile | Specifies the file to use for online help. |
| IconResource | Specifies the resource containing the dialogue box’s icon. |
| Kind | Determines the type of dialogue box that is displayed. |
| MakeSound | Flag that determines if a sound will be emitted when the dialogue box is displayed. |
| Text | The text that is displayed in the dialogue box. |
| Title | The dialogue box’s window title. |
| Event | Description |
|---|---|
| OnHelp | Event triggered when a user requests help in a dialogue box. |