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DLGITEMTEMPLATEEX (Compact 2013)

3/28/2014

This structure is not defined in any standard header file. The structure definition is provided here to explain the format of an extended template for a dialog box.

For each control in a dialog box, an extended dialog box template has a block of data that uses the DLGITEMTEMPLATEEX format to describe the control. For a description of the format of an extended dialog box template, see DLGTEMPLATEEX.

Syntax

typedef struct { 
  DWORD helpID; 
  DWORD dwExtendedStyle; 
  DWORD style; 
  short x; 
  short y; 
  short cx; 
  short cy; 
  WORD id; 
  sz_Or_Ord windowClass; 
  sz_Or_Ord title; 
  WORD extraCount; 
} DLGITEMTEMPLATEEX; 

Members

  • helpID
    Specifies the help context identifier for the control.
  • dwExtendedStyle
    Specifies extended styles for a window. This member is not used to create controls in dialog boxes, but applications that use dialog box templates can use it to create other types of windows.
  • style
    Specifies the style of the control. This member can be a combination of window style values (such as WS_BORDER) and one or more of the control style values (such as BS_PUSHBUTTON and ES_LEFT).
  • x
    Specifies the x-coordinate, in dialog box units, of the upper-left corner of the control. This coordinate is always relative to the upper-left corner of the dialog box's client area.
  • y
    Specifies the y-coordinate, in dialog box units, of the upper-left corner of the control. This coordinate is relative to the upper-left corner of the dialog box client area.
  • cx
    Specifies the control width, in dialog box units.
  • cy
    Specifies the control height, in dialog box units.
  • id
    Specifies the control identifier.
  • windowClass
    Specifies a variable-length array of 16-bit elements that identifies the window class of the control. If the first element of this array is any value other than 0xFFFF, the system treats the array as a null-terminated Unicode string that specifies the name of a registered window class.

    If the first element is 0xFFFF, the array has one additional element that specifies the ordinal value of a predefined system class. The ordinal can be one of the atom values shown in the following table.

    Value

    Description

    0x0080

    Button

    0x0081

    Edit

    0x0082

    Static

    0x0083

    List box

    0x0084

    Scroll bar

    0x0085

    Combo box

  • title
    Specifies a variable-length array of 16-bit elements that contains the initial text or resource identifier of the control. If the first element of this array is 0xFFFF, the array has one additional element that specifies an ordinal value that identifies a resource, such as an icon, in an executable file. You can use a resource identifier for controls, such as static icon controls, that load and display an icon or other resource rather than text.

    If the first element is any value other than 0xFFFF, the system treats the array as a null-terminated Unicode string that specifies the initial text.

  • extraCount
    Specifies the number of bytes of creation data that follow this member. If this value is greater than zero, the creation data begins at the next WORD boundary. This creation data can be of any size and format. The control's window procedure must be able to interpret the data. When the system creates the control, it passes a pointer to this data in the lParam parameter of the WM_CREATE message that it sends to the control.

Remarks

An extended template for a dialog box consists of a DLGTEMPLATEEX header followed by a DLGITEMTEMPLATEEX structure for each control in the dialog box.

Each DLGITEMTEMPLATEEX structure must be aligned on a DWORD boundary. The variable-length windowClass and title arrays must be aligned on WORD boundaries. The creation data array, if any, must be aligned on a WORD boundary.

If you specify character strings in the windowClass and title arrays, you must use Unicode strings.

The x, y, cx, and cy members specify values in dialog box units. You can convert these values to screen units (pixels) by using the MapDialogRect function.

Requirements

Header

wingdi.h

See Also

Reference

Dialog Box Structures
CreateDialogIndirect
CreateDialogIndirectParam
CreateWindowEx
DialogBoxIndirectParam
MapDialogRect
DLGITEMTEMPLATE
DLGTEMPLATE
DLGTEMPLATEEX

Other Resources

MultiByteToWideChar