Font Size

[J Justin]

In my vb app, I need to show the user, the list of available font size for
each font.
I have been told to use EnumFontFamily api to retrieve it. Of course, it
allowed me to get
the list of available system fonts, and its LOGFONT structure contains lot
of other elements,
but none for size. Could anybody throw some torch?

Thanks in advance


J Justin

[Michael \(michka\) Kaplan]

Size is certainly in there.... what do you think lfHeight (and occasionally
though usually not lfWidth) is there for?

--
MichKa

random junk of dubious value at the multilingual
http://www.trigeminal.com/ and a new book on
i18N in VB at http://www.trigeminal.com/michka.asp

"J Justin" <precious@md3.vsnl.net.in> wrote in message
news:3972c675@news.devx.com...
> In my vb app, I need to show the user, the list of available font size for
> each font.
> I have been told to use EnumFontFamily api to retrieve it. Of course, it
> allowed me to get
> the list of available system fonts, and its LOGFONT structure contains lot
> of other elements,
> but none for size. Could anybody throw some torch?
>
> Thanks in advance
>
>
> J Justin
>
>
>

[Michael \(michka\) Kaplan]

Size is certainly in there.... what do you think lfHeight (and occasionally
though usually not lfWidth) is there for?

--
MichKa

random junk of dubious value at the multilingual
http://www.trigeminal.com/ and a new book on
i18N in VB at http://www.trigeminal.com/michka.asp

"J Justin" <precious@md3.vsnl.net.in> wrote in message
news:3972c675@news.devx.com...
> In my vb app, I need to show the user, the list of available font size for
> each font.
> I have been told to use EnumFontFamily api to retrieve it. Of course, it
> allowed me to get
> the list of available system fonts, and its LOGFONT structure contains lot
> of other elements,
> but none for size. Could anybody throw some torch?
>
> Thanks in advance
>
>
> J Justin
>
>
>

[Klaus H. Probst]

J,

As michka says, you need to use the lfHeight member. However, this number is
expressed in logical units, so, for example, in the most common mapping mode
(MM_TEXT), a font size of 8 corresponds to a font height of -11. The formula
to calculate the height given a size is:

Declare Function MulDiv Lib "kernel32" (ByVal nNumber As Long, ByVal
nNumerator As Long, ByVal nDenominator As Long) As Long
Declare Function GetDeviceCaps Lib "gdi32" (ByVal hDC As Long, ByVal nIndex
As Long) As Long
Public Const LOGPIXELSY = 90

lfHeight = -MulDiv(lFontSize, GetDeviceCaps(pDC, LOGPIXELSY), 72)

To do it the other way around, just reverse the division operation:

lFontSize = -((.lfHeight * 72) \ GetDeviceCaps(pDC, LOGPIXELSY))

This technique is documented in the LOGFONT reference on the PSDK.

.. . . . . . . . . . . . . . . . . . . . . .
Klaus H. Probst, MVP
http://www.vbbox.com/
http://www.mvps.org/ccrp/

Please post/reply to the newsgroup(s)



"J Justin" <precious@md3.vsnl.net.in> wrote in message
news:3972c675@news.devx.com...
> In my vb app, I need to show the user, the list of available font size for
> each font.
> I have been told to use EnumFontFamily api to retrieve it. Of course, it
> allowed me to get
> the list of available system fonts, and its LOGFONT structure contains lot
> of other elements,
> but none for size. Could anybody throw some torch?
>
> Thanks in advance
>
>
> J Justin
>
>
>

[Klaus H. Probst]

J,

As michka says, you need to use the lfHeight member. However, this number is
expressed in logical units, so, for example, in the most common mapping mode
(MM_TEXT), a font size of 8 corresponds to a font height of -11. The formula
to calculate the height given a size is:

Declare Function MulDiv Lib "kernel32" (ByVal nNumber As Long, ByVal
nNumerator As Long, ByVal nDenominator As Long) As Long
Declare Function GetDeviceCaps Lib "gdi32" (ByVal hDC As Long, ByVal nIndex
As Long) As Long
Public Const LOGPIXELSY = 90

lfHeight = -MulDiv(lFontSize, GetDeviceCaps(pDC, LOGPIXELSY), 72)

To do it the other way around, just reverse the division operation:

lFontSize = -((.lfHeight * 72) \ GetDeviceCaps(pDC, LOGPIXELSY))

This technique is documented in the LOGFONT reference on the PSDK.

.. . . . . . . . . . . . . . . . . . . . . .
Klaus H. Probst, MVP
http://www.vbbox.com/
http://www.mvps.org/ccrp/

Please post/reply to the newsgroup(s)



"J Justin" <precious@md3.vsnl.net.in> wrote in message
news:3972c675@news.devx.com...
> In my vb app, I need to show the user, the list of available font size for
> each font.
> I have been told to use EnumFontFamily api to retrieve it. Of course, it
> allowed me to get
> the list of available system fonts, and its LOGFONT structure contains lot
> of other elements,
> but none for size. Could anybody throw some torch?
>
> Thanks in advance
>
>
> J Justin
>
>
>