xcall MIAMEX, MX_GDICALC, opcode, handle, status {,params}
(Windows/ATE) MX_GDICALC performs various calculations on the length and/or height of a string as it will appear when printed. In the case of a rectangle, it will also break the string into two parts, the first of which will fit within the rectangle, the remainder of which will be printed in another space or on the next page.
Parameters
opcode (Num) [in]
|
Symbol |
Value |
Description |
|
MXGDI_OPENPTR |
1 |
Open a printer device context |
|
MXGDI_SETFONT |
2 |
|
|
MXGDI_CALCRECT |
3 |
|
|
MXGDI_CALCLEN |
4 |
|
|
MXGDI_CLOSEPTR |
5 |
Close printer context. This must be done BEFORE printing to it. Syntax: xcall MIAMEX, MX_GDICALC, MXGDI_CLOSEPTR, handle, status |
|
MXGDI_CALCRECTX |
6 |
|
|
Definition file: ashell.def | ||
handle (B,4) [in/out]
The handle variable is returned by the open operation (opcode 1) and must be specified to all the others.
status (F,6) [out]
This will be returned from each operation, with 0=success. All others are errors, with the most typical being:
See the sample program MMOGDI.BP and the updated sample text file TSTGDI.TXT in the EXLIB for examples of using MX_GDICALC and /TEXTRECTANGLE.
History
2011 August, A-Shell 5.1.1229: Several bug fixes and documentation revisions.
2008 August, A-Shell 5.1.1121: Support added for the font width parameter.
2005 May, A-Shell 4.9.932: Routine added to A-Shell.