The Dlg file format is specific to RadASM. The following is a brief summary of that format.
Each Dlg file consists of a single dialog header and a series of dialog controls. In effect a Dlg file is just a series of structures written directly to a file. The header for the dialog is detailed in the DLGHEAD structure, this structure describes the general parameters of the dialog. The dialog is also represented by the first DIALOG structure in the file. Each control that is placed on the dialog is described by a DIALOG structure, the controls are added to the file in Z-Order.
The only predefined constant used in Dialogs is the value of the maximum width in Chars of a caption. This number is subject to change but should never drop in order to maintain backward compatibility with older dialog files.
MaxCap equ 241 DLGHEAD struct ver dd ? ;Set to 101 change dd ? ;Set to FALSE class db 32 dup(?) ;Set to Null string menuid db 32 dup(?) ;Set to Null string font db 32 dup(?) ;Set to "MS Sans Serif" fontsize dd ? ;Set to 8 fontht dd ? ;Set to -10 undo dd ? ;Set to NULL ctlid dd ? ;Set to 1001 hmnu dd ? ;Set to NULL htlb dd ? ;Set to NULL hstb dd ? ;Set to NULL locked dd ? ;Set to TRUE or FALSE hfont dd ? ;Set to NULL spare1 dd ? ;Set to NULL DLGHEAD ends DIALOG struct hwnd dd ? ;Set to TRUE partype dd ? ;Dialog=1, Controls=0 oldproc dd ? ;Set to NULL hpar dd ? ;Set to NULL hcld dd ? ;Set to NULL style dd ? ;Set to desired style exstyle dd ? ;Set to desired ex style x dd ? ;X position in pixels y dd ? ;Y position in pixels ccx dd ? ;Width in pixels ccy dd ? ;Height in pixels caption db MaxCap dup(?) ;Caption max 240+1 char ntype dd ? ;Follows ToolBox buttons See Note ntypeid dd ? ;Set to NULL tab dd ? ;Tab index, Dialog=0, First index=0 id dd ? ;Dialog / Controls ID idname db 32 dup(?) ;ID Name, max 31 chars undo dd ? ;Set to NULL himg dd ? ;Set to NULL DIALOG ends