Depends on what you are using.
The following things have to be taken into account:
* Do you use only GDI mode or also GFX? (they both use different
rendering paths)
* Do you use hardware accelerated drawing (/gdi:hw) or software?
For software drawint the best starting point is gdi_UpdateSurfaces
best
armin
Am 22.03.2016 um 16:38 schrieb c0f...@mail.ru:
>
> Hi all
> I write my own rdp client, based on freerdp library. Need to make screenshot
> remote machine after login.
>
> I use Sample solution which comes with freerdp.
>
> static BOOL tf_begin_paint(rdpContext* context)
> {
> rdpGdi* gdi = context->gdi;
> gdi->primary->hdc->hwnd->invalid->null = 1;
> return TRUE;
> }
> static BOOL tf_end_paint(rdpContext* context)
> {
> rdpGdi* gdi = context->gdi;
> return TRUE;
> }
> BOOL tf_post_connect(freerdp* instance)
> {
> if (!gdi_init(instance, CLRCONV_ALPHA | CLRCONV_INVERT | CLRBUF_16BPP |
> CLRBUF_32BPP, NULL))
> return FALSE;
> instance->update->BeginPaint = tf_begin_paint;
> instance->update->EndPaint = tf_end_paint;
> return (freerdp_channels_post_connect(instance->context->channels,
> instance) == CHANNEL_RC_OK);
> }
>
> How can I get a bitmap? I suppose is necessary to save gdi->primary_buffer in
> tf_end_paint, but this doesn't work.
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