> I wrote:
> in its Win32 port ... I set the top and left margins to one inch ...
> but the text is printed with top and left margins that are about one
> and a quarter inches.
OK, I tried this in Linux too now. Better, but not quite. I get exactly 1
inch margin on the left, but something like 3/4 inch at the top of the page.
I added the function below into my code, called from the begin-print
handler, to correct the margins in Windows, and with this they print at
exactly 1" as they should (but the top margin is still too small in Linux).
But I should not need to do this correction - it should be handled by the
GtkPrintOperation;
I will put in bug reports on both these (Windows and Linux) problems.
/*
* Sets the print margins.
*
* In Windows this needs to be called after the printer has been selected
*
* Margins are in inches
*/
void
setPrintMargins(GtkPrintOperation *operation, gdouble topMargin,
gdouble btmMargin, gdouble leftMargin)
{
GtkPageSetup *pageSetup;
#ifdef _WIN32
gdouble offset_x, offset_y;
POINT pt;
HDC hDc;
GtkPrintSettings *settings;
const gchar *printerName;
settings = gtk_print_operation_get_print_settings(operation);
printerName = gtk_print_settings_get_printer(settings);
hDc = CreateDC("WINSPOOL", printerName, NULL, NULL);
if (hDc)
{
pt.x = GetDeviceCaps(hDc, PHYSICALOFFSETY);
pt.y = GetDeviceCaps(hDc, PHYSICALOFFSETY);
/* Convert Windows logical units -> pixels and then -> inches */
LPtoDP(hDc, &pt, 1);
offset_x = (gdouble)pt.x / (gdouble)GetDeviceCaps(hDc, LOGPIXELSX);
offset_y = (gdouble)pt.y / (gdouble)GetDeviceCaps(hDc, LOGPIXELSY);
topMargin -= offset_y;
leftMargin -= offset_x;
btmMargin -= offset_y;
}
#endif
/* Set the margins */
pageSetup = gtk_page_setup_new();
gtk_page_setup_set_top_margin(pageSetup, topMargin, GTK_UNIT_INCH);
gtk_page_setup_set_left_margin(pageSetup, leftMargin, GTK_UNIT_INCH);
gtk_page_setup_set_bottom_margin(pageSetup, btmMargin, GTK_UNIT_INCH);
gtk_print_operation_set_default_page_setup(operation, pageSetup);
}
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